1, the line is insufficient. If the cardholder's credit card limit is not enough for the transaction amount, the credit card will be invalid;

2. the 2.POS machine is broken. If the credit card is full, it may be that the POS machine is broken;

3. The credit card status is incorrect. If the cardholder's credit card is blocked by CCB, or the credit card is demagnetized and the chip is damaged, then the card cannot be swiped again;

4. The credit card channel is wrong. Credit cards include UnionPay, visa, MasterCard and other brands. Cardholders need to swipe their cards on the corresponding POS machines when swiping their cards. For example, UnionPay cards should be brushed on POS machines with UnionPay logo.

If it is one of the above reasons, you need to stop using CCB's credit card immediately, and go to CCB's counter to ask the reason, so that the bank staff can handle it.

Extended data:

Credit cards allow customers to use wealth management accounts, Peony Smart Card E Times, Peony Smart Card, Peony International Card, Peony Credit Card, Peony Credit Card and various co-branded cards for credit card payment, and the money is deducted from the relevant bank cards.

Credit card is a kind of credit card jointly launched by banks, shopping malls, supermarkets and well-known brand companies, which has certain business orientation. It not only has the function of ordinary credit card, but also can enjoy some activities such as points and discounts of joint ventures. For example, the Wal-Mart Credit Card of Bank of Communications and the credit card of Wal-Mart Supermarket can be used to enjoy various discount points.

Baidu encyclopedia-credit card consumption

Baidu Encyclopedia-CCB Credit Card