Credit cards can be frozen. If you want to freeze your bank card, you need to apply for freezing your credit card at the bank counter with your ID card and credit card. You can also call the bank customer service phone to freeze the credit card business. You can also apply for freezing bank cards in the official bank app.

Swiping a card on a POS machine is the most common way to use a credit card, and it is also a way to swipe a card online. When swiping a card, the operator should first check the validity period of the credit card and the cardholder's surname. Then, according to the issuing bank and the currency to be paid, select the corresponding POS machine, draw the magnetic stripe of the magnetic stripe credit card on the POS machine, or insert the chip credit card into the card slot, connect with the payment gateway such as the bank, and input the corresponding amount. After the remote payment gateway receives the information, the POS will print a receipt (at least two copies) for credit card payment, and the cardholder should sign the receipt after checking that the information on the payment receipt is correct. After checking the signature on the receipt and the signature on the back of the credit card (including the complete name matching and the basic handwriting matching), the operator sends the credit card copy and the credit card payment receipt to the cardholder. At this point, the credit card swiping program on the POS machine is completed.

If you don't intend to continue using your credit card, you must cancel your account. If the account is not closed, the bank will charge an annual fee for the credit card. If the card is not overdrawn, you can apply for account cancellation at any time.

If the card has not expired, you need to apply first, and then go to the bank to cancel the account after a certain period of time; If the card has expired and the account balance is zero, you can directly cancel the account at the designated bank outlet. When closing the account, you should bring your valid ID card and the original card. If it's not convenient for me to close the account, someone else can help you. The agent must hold the power of attorney written by the principal (himself) and bring the original valid identity certificate to handle the account cancellation business.

If your card has not expired when you cancel your credit card account, some banks stipulate that you need to go to the designated outlets to receive the card, and then go through the formal account cancellation procedures after a certain period of time (up to 30 days). This is mainly because if the cardholder has done a manual card pressing transaction before closing the account, the cardholder will have closed the account before the merchant submits the card pressing form to the bank for entry, and the bank will not be able to liquidate normally; On the other hand, if the cardholder is in consumption abroad or withdraws cash, it may take several days to settle the account. If the account is closed immediately, it will also affect the normal liquidation of the bank.