Brazilian debit cards (e.g., from Banco do Brasil) may not work for international online services (e.g., Uber, Booking, subscriptions like Claude) or international payments, especially if the payment processing occurs outside Brazil or the user account is not registered as Brazilian. Some 'neo-banks' like Nubank may offer debit cards with broader international acceptance. For international travel outside Brazil, foreign cards (e.g., Polish cards) are generally more reliable.
✓ 1 report from chats