South America does not have a single financial authority capable of investigating every broker, bank, investment platform or crypto project operating across the continent.

Each country has its own securities regulator, banking supervisor, consumer-protection system and criminal-reporting process. In some jurisdictions, one authority supervises most financial markets. In others, responsibility is divided between several institutions.

That matters because a complaint sent to the wrong body may be recorded but never examined as an individual dispute.

A regulator usually looks at licensing, market conduct and possible breaches of financial law. A consumer-protection body may deal with service disputes. A financial ombudsman or consumer defender may attempt conciliation. Police and prosecutors investigate suspected criminal conduct.

Before filing anything, an investor should determine what result is actually being sought:

• a regulator reviewing possible misconduct;
• a company processing a delayed withdrawal;
• compensation for a financial loss;
• investigation of a potentially unlicensed operator;
• reporting a cloned or impersonating website;
• criminal investigation of suspected fraud.

This guide explains how the main complaint systems work across South America and what information each authority is likely to require.

The Four Types of Financial Reports

1. Complaint against a regulated financial company

This is normally a personal dispute involving a company that appears in an official register.

Examples include:

• a withdrawal remaining pending;
• an account restriction;
• unauthorised trading;
• incorrect execution of an order;
• disputed commissions;
• misleading investment advice;
• refusal to close an account;
• failure to deliver securities or dividends;
• unexplained deductions.

The normal process is:

1. complain directly to the financial company;
2. obtain a written response;
3. escalate to the national regulator, consumer defender or dispute-resolution body.

2. Report of possible regulatory misconduct

This concerns conduct that may affect more than one investor or breach financial-market rules.

Examples include:

• offering investments without authorisation;
• using a genuine licence number on an unrelated website;
• misleading statements about regulation;
• operating a clone of a licensed company;
• unauthorised public solicitation;
• suspicious management of client funds;
• repeated withdrawal complaints;
• possible market manipulation.

A regulator may investigate or issue a warning, but it does not automatically compensate the reporting investor.

3. Consumer complaint

Some disputes are handled through national consumer systems rather than the securities regulator.

This is common where the issue concerns:

• service quality;
• fees;
• contractual information;
• failure to respond;
• disputed charges;
• communication with a participating financial company.

4. Criminal or cybercrime report

Police or prosecutors may be the correct route where the facts indicate:

• identity theft;
• fake documents;
• unauthorised transfers;
• deceptive websites;
• cryptocurrency theft;
• account takeover;
• impersonation;
• organised investment fraud;
• phishing or remote-access abuse.

The same case may require reports to the regulator, payment provider and police.

A Practical Rule Before Contacting Any Regulator

I recommend checking five points before writing the complaint:

1. What is the company’s exact legal name?
2. Which country supposedly authorised it?
3. Does the official register show the same website?
4. Who actually received the payment?
5. Is the investor seeking enforcement, compensation or both?

A domain displaying the name of a South American regulator is not evidence that the operator is supervised.

Brazil: CVM, Central Bank and Consumer Channels

Brazil divides financial supervision by activity.

The Comissão de Valores Mobiliários, usually known as CVM, supervises securities markets, investment funds, public securities offerings and market professionals. The Central Bank of Brazil supervises banks, payment institutions and other parts of the financial system.

Complaints and reports to the CVM

The CVM accepts information about possible fraud or wrongdoing involving securities law, investment accounts and financial professionals. It provides investor-assistance contacts in Rio de Janeiro and São Paulo.

CVM investor contacts

Rio de Janeiro Investor Assistance Office

• Email: goi1@cvm.gov.br
• Telephone: +55 21 3554-8315
• Address: Rua Sete de Setembro 111, 5th floor, Centro, Rio de Janeiro, RJ, 20050-901

São Paulo Regional Office

• Email: goi-2@cvm.gov.br
• Telephone: +55 11 2146-2081
• Address: Rua Cincinato Braga 340, 2nd floor, São Paulo, SP, 01333-010

The CVM may be appropriate for reports concerning:

• securities brokers;
• investment funds;
• public offerings;
• portfolio managers;
• investment advisers;
• market manipulation;
• potentially fraudulent securities schemes;
• companies falsely claiming CVM supervision.

Consumer disputes in Brazil

Brazil also operates Consumidor.gov.br, a free public service that allows consumers to communicate directly with participating companies. The company receives and responds to the complaint through the platform.

This route can be useful for a direct service dispute with a participating bank or financial institution. It is not a substitute for a CVM misconduct report or a police complaint.

What to include in a Brazilian complaint

Provide:

• company name and CNPJ, if available;
• domain and subdomains;
• claimed CVM registration;
• account statements;
• payment beneficiary;
• withdrawal requests;
• conversations with representatives;
• advertising materials;
• chronology of events.

Argentina: Comisión Nacional de Valores

Argentina’s Comisión Nacional de Valores regulates and supervises the capital market.

Its investor-protection section provides separate routes for investor enquiries and formal reports.

What can be reported to the CNV?

The CNV may receive information about:

• registered brokers and market agents;
• capital-market intermediaries;
• public offerings;
• investment products;
• conduct affecting market transparency;
• potentially unauthorised market activity;
• false claims of CNV registration.

Investors are also encouraged to complain directly to the public-relations or investor-relations officer of the registered market agent. The contact details should be available in the CNV public register.

CNV complaint routes

A formal report can be submitted:

• personally at 25 de Mayo 175, Buenos Aires;
• by post to CNV, 25 de Mayo 175, 6th floor, CABA 1002;
• online through the official complaint form.

CNV investor contacts

• Email: inversor@cnv.gov.ar
• Telephone: 0800-333-2683, option 2
• Telephone service: Monday to Friday, 10:00–13:00
• Online filing desk: mesadeentradascnv@cnv.gov.ar

Important limitation

A CNV report may lead to regulatory review, but an individual claim for damages may require a separate judicial or consumer process.

Chile: Comisión para el Mercado Financiero

Chile’s Comisión para el Mercado Financiero supervises securities, banks, insurers and other financial-market participants.

The CMF accepts complaints concerning supervised entities and also maintains fraud alerts involving businesses or people that may be providing financial or investment services without authorisation.

What complaints does the CMF accept?

A securities-market complaint may involve:

• an issuer;
• investment-fund manager;
• broker;
• securities agent;
• other supervised market entity.

The official procedure is available to investors and the general public throughout the year.

The CMF’s complaint division also handles submissions from investors, insured persons, banking customers, financial customers and other legitimate interested parties within its jurisdiction.

How to prepare a CMF complaint

The authority recommends:

• a chronological description;
• identification of the supervised entity;
• copies of relevant documents;
• supporting evidence;
• a signed written complaint.

CMF contact and filing route

Written securities complaints may be delivered or mailed to:

Comisión para el Mercado Financiero
Avenida Libertador Bernardo O’Higgins 1449
Torre I, first floor
Santiago, Chile

The procedure is free. Response time depends on the complexity of the matter and the evidence that must be obtained.

The CMF also allows complainants to track the status of complaints filed against supervised entities.

Colombia: Superintendencia Financiera and the Financial Consumer Defender

Colombia uses a dual complaint structure.

A consumer may complain:

• directly to the supervised financial institution;
• to the institution’s Defensor del Consumidor Financiero;
• to the Superintendencia Financiera de Colombia.

Superintendencia Financiera complaints

The Superintendencia coordinates complaints about services provided by entities it supervises. Complaints may be submitted personally, in writing, through the website or by email.

Contact

• Email: super@superfinanciera.gov.co
• Online route: official PQRSD submission form

The Superintendencia may be relevant to:

• banks;
• insurers;
• trust companies;
• supervised securities intermediaries;
• pension entities;
• other supervised financial institutions.

Defensor del Consumidor Financiero

Each supervised financial institution has a Financial Consumer Defender.

The Defender can:

• receive and resolve complaints;
• assist consumers;
• act as a conciliator where permitted;
• make recommendations to supervised companies;
• represent consumer concerns before the institution.

For an individual dispute, this may be more direct than submitting only a general regulatory complaint.

What to include

Attach:

• complaint already sent to the company;
• company’s reply;
• account number;
• transaction history;
• disputed fees;
• withdrawal evidence;
• description of the remedy requested.

Peru: Superintendencia del Mercado de Valores

Peru’s Superintendencia del Mercado de Valores protects investors and supervises transparency and proper functioning in the securities market.

What complaints can be made?

The SMV provides guidance for complaints involving:

• stockbrokers;
• mutual-fund managers;
• investment-fund managers;
• collective-fund administrators;
• other entities supervised by the securities authority.

Its investor-defence guidance explains the available complaint and reporting channels where a client believes that a supervised entity has affected their rights.

Regulatory complaint versus consumer complaint

Peruvian rules distinguish between:

• regulatory reports to the SMV;
• consumer complaints that may fall within INDECOPI’s jurisdiction.

The applicable SMV rules state that final consumers affected by possible breaches of consumer-protection rules involving certain supervised securities entities may file a complaint with INDECOPI.

Investor assistance contact

The SMV Investor Defender has published the following contact details:

• Telephone: +51 1 610-6300, extension 2009
• Email: defensoria@smv.gob.pe
• Address: Vía Expresa Luis Fernán Bedoya Reyes 3617, San Isidro, Lima, eighth floor.

What the SMV can review

A complaint may concern:

• market intermediaries;
• investment funds;
• regulated securities businesses;
• failure to follow investor instructions;
• possible breaches of market rules;
• unauthorised public investment activity.

Uruguay: Central Bank and Criminal Reporting

In Uruguay, the Banco Central del Uruguay supervises much of the financial system and securities market through its regulatory structure.

For complaints involving a regulated company, the investor should first identify whether the institution appears in the Central Bank’s official registers and use the consumer or financial-services complaint route available through the authority.

Where the conduct appears criminal, Uruguay’s Ministry of the Interior provides an online reporting system for conduct that may constitute a criminal offence.

When a criminal report may be appropriate

Examples include:

• a fake investment website;
• forged financial documents;
• identity theft;
• unauthorised transfers;
• deliberate impersonation;
• deceptive crypto schemes;
• a company that cannot be identified in any financial register.

A regulatory complaint and criminal report may be filed separately.

Ecuador: Securities Supervision and the Prosecutor’s Office

Financial and securities oversight in Ecuador is divided among national supervisory bodies depending on the type of company and service.

For suspected investment misconduct, investors should verify whether the company is registered with the relevant securities or financial supervisor before filing a complaint.

Where the facts suggest a criminal offence, the Fiscalía General del Estado provides reporting and case-information services.

The Prosecutor’s Office publishes the following contact details:

• Telephone: 02 3985 800
• Address: Juan León Mera N19-36 and Avenida Patria, Quito.

Evidence for an Ecuadorian criminal complaint

Include:

• names of people involved;
• company and website;
• payment recipient;
• bank records;
• wallet addresses;
• messages and calls;
• copies of false documents;
• exact amount and date of loss.

Paraguay: Financial and Securities Complaint Routes

In Paraguay, complaints depend on whether the issue concerns:

• a bank or financial institution;
• a securities-market participant;
• an insurance company;
• an unregistered investment operator.

Investors should verify the company through the relevant Central Bank or securities-market register before transferring money.

A report should distinguish between:

• a complaint against a supervised institution;
• possible unauthorised investment activity;
• suspected criminal fraud.

Where an online platform is not registered and the operator cannot be identified, the matter may need to be referred to the police or prosecutor in addition to the financial authority.

Common Complaints Accepted Across South America

Although legal procedures differ, regulators regularly receive similar types of reports.

Withdrawal delays

Typical allegations include:

• a withdrawal remaining pending;
• repeated cancellation of withdrawal requests;
• new conditions introduced after the request;
• refusal to close an account;
• account access blocked after requesting funds;
• support no longer responding.

The complaint should state:

• the date of the request;
• the platform’s stated processing period;
• the amount;
• the company’s explanation;
• every additional demand.

Unexpected payment requests

Regulators may receive reports involving:

• a tax payable directly to the broker;
• insurance before withdrawal;
• verification charges;
• account-release payments;
• security deposits;
• liquidity fees;
• blockchain validation charges;
• demands for a further investment.

Do not simply write that the company “asked for more money.” Attach the exact communication.

Unauthorised financial services

Relevant evidence may show that:

• the company is absent from the register;
• the claimed licence belongs to another entity;
• the domain is not listed by the regulator;
• the payment recipient differs from the licensed company;
• the company targeted local residents without authorisation;
• the website falsely uses a regulator’s logo.

Misleading investment conduct

Reports may involve:

• guaranteed returns;
• false low-risk claims;
• unauthorised trading;
• undisclosed conflicts;
• pressure to increase deposits;
• misleading statements about insurance or deposit protection;
• fake trading results;
• false claims of government approval.

Crypto-related reports

Useful evidence includes:

• wallet addresses;
• blockchain network;
• transaction hashes;
• exchange names;
• destination account details;
• screenshots of balances;
• messages about release or verification fees;
• domain and application names.

What South American Regulators Usually Cannot Do

A complaint does not normally guarantee that an authority will:

• recover all money;
• reverse a cryptocurrency transfer;
• provide private legal representation;
• force an unidentified offshore website to respond;
• reveal an active investigation;
• decide a civil compensation claim immediately;
• trace assets located abroad;
• guarantee that the operator will be identified.

A regulator protects the market and supervises authorised companies. Personal compensation may require a consumer body, ombudsman, conciliation, civil proceedings or criminal restitution.

Evidence Checklist

Prepare one structured evidence package containing:

• legal company name;
• trading name;
• all known domains;
• claimed licence and registration number;
• regulator named on the website;
• representative names;
• telephone numbers;
• email addresses;
• investor account ID;
• payment dates and amounts;
• bank beneficiary details;
• card references;
• wallet addresses;
• transaction hashes;
• withdrawal requests;
• screenshots of the account;
• correspondence;
• advertisements;
• terms and conditions;
• additional payment demands;
• complaint sent to the company;
• company’s final response;
• chronological summary.

Do not include passwords, private keys, recovery phrases or complete card details.

Complaint Template

Subject

Complaint concerning [company name], [domain] and unresolved investment withdrawal

Introduction

I am submitting information concerning [company name], operating through [domain]. The company claims to be authorised or registered by [authority]. I have been unable to confirm that the website and payment recipient are connected to the supervised entity.

Chronology

On [date], I opened an account after contact through [channel].
On [date], I transferred [amount] to [recipient].
On [date], I requested a withdrawal of [amount].
On [date], the company requested an additional payment described as [fee].
The matter remains unresolved as of [date].

Regulatory concern

My concerns include possible unauthorised investment activity, potentially misleading regulatory claims, undisclosed charges and failure to process the withdrawal under the conditions originally presented.

Requested action

I request that the authority assess whether the company, domain and representatives fall within its jurisdiction and whether the reported conduct may involve a breach of applicable financial-market rules.

How to Choose the Correct Regulator

Use this sequence:

1. Identify the financial product.
2. Identify the legal company.
3. Search the official register.
4. Compare the authorised details with the domain.
5. Check who received the money.
6. Complain to the company in writing.
7. Use the financial regulator for possible rule breaches.
8. Use a consumer defender or complaint service for an individual dispute.
9. Contact police or prosecutors where fraud is suspected.
10. Notify the bank, card issuer or crypto exchange immediately.

Quick Country Guide

Brazil

Use the CVM for securities-market misconduct and investment-professional complaints. Use the Central Bank route for banks and payment institutions. Consumidor.gov.br may help with direct complaints against participating companies.

Argentina

Use the CNV for capital-market participants, unauthorised activity and investor-protection concerns. Contact the registered agent’s public-relations officer first where appropriate.

Chile

Use the CMF for complaints involving supervised banks, insurers, brokers, issuers and investment entities. The CMF also publishes alerts about potentially unauthorised platforms.

Colombia

Use the supervised company, its Defensor del Consumidor Financiero and the Superintendencia Financiera. The Defender is particularly relevant for individual complaints and conciliation.

Peru

Use the SMV for securities-market supervision and the Investor Defender for guidance. Some consumer disputes may belong with INDECOPI.

Uruguay

Use the relevant Central Bank complaint route for supervised financial institutions. Report suspected criminal online investment conduct through the national police-reporting system.

Ecuador

Verify the relevant financial or securities supervisor. Use the Fiscalía where the matter may involve criminal conduct.

Paraguay

Check whether the business appears in the applicable financial or securities register. Report suspected unauthorised activity to the supervisor and possible fraud to law enforcement.

Frequently Asked Questions

Is there one regulator for all of South America?

No. Every country has its own financial and securities framework. A company licensed in one country is not automatically authorised across the continent.

Should I complain to the regulator where I live?

Possibly, especially where the company actively targeted residents of your country. However, the primary regulator is usually the authority supervising the legal entity.

Can a regulator return my investment?

Usually not through the complaint process alone. A regulator may investigate or sanction a company, while compensation may require a separate consumer, arbitration or court procedure.

Can I report an offshore broker?

Yes. A national regulator may still record the information, publish a warning or examine whether residents were unlawfully targeted.

What if the licence number is real?

Confirm that the legal name, domain, email address, telephone number and payment recipient match the official register. Clone platforms often copy genuine licence information.

Should I report the same case to several authorities?

Yes, where each body has a different role. A securities regulator, consumer authority, police force and bank may all require separate reports.

Can I submit a complaint in English?

Some regulators accept international enquiries in English, but many national procedures operate mainly in Portuguese or Spanish. A concise translation into the regulator’s official language can improve processing.

What if the company never replied to my complaint?

State when and how the complaint was sent, attach proof of delivery and explain that no final response was received.

Final Assessment

The South American regulatory landscape is not weak, but it is fragmented.

A report becomes much more effective when it answers four questions immediately:

• Who is the legal operator?
• Which authority supposedly supervises it?
• Where did the money go?
• What exact regulatory or consumer issue occurred?

A general message stating that a platform “does not return money” is rarely enough.

A stronger submission contains:

• a verified company name;
• the domain;
• registration details;
• payment evidence;
• a short timeline;
• the company’s response;
• a precise explanation of the suspected breach.

The website’s claimed location is only the starting point. The payment recipient, official register and contractual entity usually reveal which South American authority can actually examine the case.