Methods to know the card number:
1. If you keep your bank credit card at home, you can call your home phone number and ask your family members for the card number.
2. The most convenient way is to call the bank’s customer service number, follow the prompts and tell your identity information, and the staff will tell you your bank card number.
3. Bring your ID card to the bank counter for consultation and ask the staff to check the card number.