1. Call China Bank's credit card customer service number, transfer to manual customer service, and apply for credit card cancellation.

2. Bring your personal ID card and credit card to the business outlets of China Bank and cancel your credit card at the counter. According to the regulations of the Bank of China, credit cards cannot be restored after cancellation. If you need to use the card in the future, you need to apply for a new credit card. And the credit card cancellation has a waiting period of 45 days, during which no new bills or any transactions can be generated, otherwise the cancellation will fail.