Customer service inquiries.

1. You can check at the counter. You only need to bring your ID card to the counter of the offline business location of the bank where the credit card belongs. 2. You can call the bank to inquire, call the customer service number of the bank to which the credit card belongs, and provide your corresponding ID number to inquire. The cardholder can bring his or her ID card to the bank counter to seek help from the staff for inquiry. Cardholders can also call the bank's credit card center, report your ID number, and ask the staff to help you check the credit card number, or bring your ID card to the local bank counter to check. You can also log in to the bank's official website or application software to make inquiries.