The reason why China Merchants Bank credit card holders apply for this credit card is to enjoy its basic functions, such as credit card spending. Of course, the more value-added services they bring, the better. However, it is not excluded that sometimes the credit card holders of this bank will face the failure of swiping their cards. At this time, the bank's credit card holders need to check whether there are the following phenomena in their credit cards and credit card environment:

First, your CMB credit card has not been opened;

Second, the available credit card limit of China Merchants Bank is lower than the consumption limit;

Third, the magnetic stripe of your CMB credit card is damaged or demagnetized;

Fourth, the line was broken when swiping the card.