Hello there, jsdaraujo,
You'll want to contact Banco do Brasil directly. They can provide these information needed for you to be able to connect your account to QuickBooks Online.
Once you have these, go back to QBO and follow these steps:
- Click Banking on the left pane.
- Select Connect Account.
- Locate your bank, and select Continue.
- Enter bank login credentials.
Check this article for reference: Connect bank and credit card accounts to QuickBooks Online.
I'll be around if you need further assistance.