Why does my card only function as a credit card when used outside of the United States? What should I do?
U.S Debit cards are issued with dual functionality. They are linked to both a debit and credit network (example Mastercard). They are international payment networks that are widely accepted around the world. When you use the U.S debit card abroad, it can be processed through these networks just like a credit card.
When you make a purchase with your U.S Debit card outside the United States, the transaction may be processed differently than a typical debit transaction that requires you to enter your PIN. Instead, it could be processed as a credit transaction and may require your signature.
The payment network associated with your U.S debit card may have limited compatibility with local payment systems in Brazil.
As a result, your card is automatically processed as a credit card because the debit function is not supported locally.