Hello, the credit card of Bank of Communications can be cancelled if you don't want to use it. You can call the 24-hour customer service hotline to apply for card cancellation. When you cancel your card, you can't owe money on the account. And in order to ensure the security of the account, the card must be taken with you when you sell it by phone. If you lose your card, you can only cancel it at the outlet counter. If there is a new account payable within 45 days (inclusive) after the card is cancelled, it will still be borne by you. After returning the card for 45 days, if the account has no arrears or overflow, the system will automatically close the account without going through any formalities.

If you have other specific questions, I suggest you call the issuing bank, hoping to help you.