There may be many reasons why the card cannot be used. To sum up, there are roughly the following categories:
First, the card status is abnormal, such as the card is degaussed or the chip is damaged. If the card is damaged or the password is entered incorrectly too many times and the password is locked, it is recommended to call the CCB service hotline to confirm
Secondly, there is no problem with the card. The POS machine signal is not good and the transaction is not connected to the network. fail.
Third, if you hold an IC chip credit card, since UnionPay has closed the downgrade transaction function, if the cashier still operates the transaction by swiping the card instead of inserting the card, it will also be unusable
p>Fourth, the credit card itself does not support transactions, such as VISA single-logo card/JCB single-logo card, does not support UnionPay transactions, nor does it support some online transactions
Fifth, the credit card itself The cash withdrawal limit is insufficient. If this is the case, you need to pay back the money to the credit card before you can use it (you can use the mobile phone number you reserved with China Construction Bank, edit the text message "313# last four digits of the card number" and send it to 95533 to check the card available amount). Or adjust a temporary limit and try again.