Hello, most credit card business can be handled through the bank's customer service hotline, and credit card cancellation is no exception. If you want to cancel the unused credit card, you must first confirm that there is no debt or balance in the account before canceling the credit card, and then call the credit card customer service to transfer to manual service and directly apply to the manual customer service for canceling the credit card; After accepting the application for card refund, the manual customer service will often remind you of the credit card bill and pay off all debts within a certain period of time (usually 45 days), during which the card can no longer be used; At the appointed time, the bank will officially cancel the card after confirming that all the credit card accounts have been settled. In addition, I would like to remind you that, like applying for a credit card, it is completely free to cancel the credit card, and there is no cancellation fee.