First, if the credit card is stolen by others, or if there are transactions by someone other than the person in the bill details, the cardholder should immediately contact the customer service of the CCB Credit Card Center for processing. The bank can further process it by retrieving the purchase order or querying the transaction details.

Second, if the credit card is indeed stolen due to the leakage of the credit card or the cardholder's personal information, the cardholder can apply for a new credit card. After replacing the credit card, the card number, validity period, and security code All changes have been made to improve card security.

Third, cardholders can also apply for the small-amount payment reminder service, which costs 3 yuan per month. As long as the credit card payment is made, a text message will be sent to the cardholder’s reserved mobile phone regardless of the amount, which is helpful. Keep cardholders informed of card transaction status.