Brazil: How to Report Bank Fraud
If money left your account without your permission, or you were tricked into sending it, contact your bank or payment provider straight away. The faster they hear from you, the better the chance of stopping or recovering the money. Below are the official fraud and card lines for 6 providers in Brazil.
Do this first
- Call your bank’s fraud or card line now. Use a number from this page, the back of your card, or your bank’s official app. Never use a number from a text, an email, a caller or a search ad.
- Block your card or freeze your account in the app if you can, and change your online banking password.
- Ask the bank for a reference number, and write down the time you reported it.
- Report it to the police as well: see who handles cybercrime in Brazil.
- Keep everything: messages, call logs, screenshots and transaction IDs. Your bank will never ask for your PIN, password or a one-time code.
Know this about Brazil
- A refund is not guaranteed: the Pix MED process only lets your bank try to recover the money.
- Consumer-protection agents never call to ask for your personal data.
Bank and payment fraud lines
Itaú Unibanco
Bank- Scam or theft, say 'roubo' for priority (capitals and metro areas):4004 4828
- Scam or theft (other areas):0800 970 4828
- From abroad:55 11 4004 4828
- Other Itaú credit cards (capitals and metro areas):3003 3030(24/7)
- Other Itaú credit cards (other areas):0800 720 3030(24/7)
- Credit cards, hearing or speech impaired:0800 722 1722(24/7)
- iti app (capitals):3003 6484(24/7)
- iti app (other areas):0800 2000 484(24/7)
App or online: iti app: Profile › Help › Chat. You can also block accounts and cards through the Celular Seguro app.
Report phishing: [email protected]
Bradesco
Bank- Fone Fácil (capitals and metro areas):4002 0022(24/7)
- Fone Fácil (other areas):0800 570 0022(24/7)
- From abroad:55 11 4002 0022(24/7)
- Hearing impaired:0800 722 0099
- SAC (customer service):0800 704 8383
App or online: Bradesco or Bradesco Cartões app: temporarily block your credit card.
Report phishing: [email protected]
Banco do Brasil
Bank- Central BB (capitals and metro areas):4004 0001(24/7)
- Central BB (other areas):0800 729 0001(24/7)
- WhatsApp:61 4004 0001
Caixa Econômica Federal
Bank- Block debit card:0800 726 0101
- Credit card loss or theft (capitals and metro areas):4004 0104
- Credit card loss or theft (other areas):0800 104 0104
App or online: Cartões CAIXA app: use 'Liga/Desliga' to switch off a credit card, and contest purchases.
Santander Brasil
Bank- Customer service (metro areas):4004-3535
- Customer service (other areas):0800 702 3535
- Hearing or speech impaired:0800 723 5007
App or online: Santander app: Cartões › Bloqueio ou reemissão de cartão › Bloqueio Imediato.
Pix (instant payment) and the MED refund mechanism
Instant paymentsApp or online: Contest the Pix in your own bank's app to start a MED refund request; every institution must offer this in its app.
If your bank won’t help
Your bank's Ouvidoria (internal ombudsman)
Every supervised institution must have an Ouvidoria that can mediate when the normal customer channel has not solved your problem; the Central Bank links a list of Ouvidoria contacts.
Use it after the bank's normal customer channel.
Official websiteBanco Central do Brasil: register a complaint
Complaint against a bank, payment institution or other firm supervised by the Central Bank.
You need a gov.br account at silver or gold level with two-step verification. The Central Bank does not resolve individual cases; the institution has up to 10 business days to respond.
Official websiteConsumidor.gov.br
Government platform for complaining directly to participating companies, including banks.
Log in with your gov.br account.
Official websiteYour rights
- Pix MED (Mecanismo Especial de Devolução). If you were tricked into a Pix payment, contest it through your own bank's app within 80 days. A refund depends on money still being in the accounts used by the fraudster. Source
Report it to the police too
Banks often ask for a police report before they investigate. Cybercrime agencies in Brazil lists who to report to, and our step-by-step guide covers the rest: How to Report a Scam in Brazil (and Recover Your Money).
Every number on this page was read on the provider’s or regulator’s own website on 3 October 2026. Banks change numbers, so if one doesn’t work, use the number on your card or in the official app, and tell us so we can fix it. See every country in the Bank Fraud Help directory.