Credit card business is part of the bank's profits. Therefore, in order to encourage more people to apply for cards, major banks have begun to lower the threshold for card application and launch various preferential activities, and usually do not restrict cardholders from using credit cards without reason. But what if the credit card suddenly doesn't work properly?

I. Failure of trading equipment

If the credit card cannot be used, besides the credit card, it may be due to equipment failure. After connecting to the network, you can try to restart the device and use the card. At this point, if it is a device problem, it should be able to trade normally after restarting.

Second, illegal use of credit cards.

Only one card can be used continuously. If the user violates the rules in the process of using the card, it will trigger the bank's risk control system, resulting in the suspension of the credit card. At this time, the credit card cannot be used normally.

Third, consumption in different places or abroad.

Sudden consumption in different places or consumption abroad is also vulnerable to the risk control of the banking system, for fear of abnormal situation, so risk control will be carried out for the security of the card. In this case, the cardholder can contact the customer service of the bank and explain that his credit card will resume normal use after consumption.

Fourth, reach the credit card limit.

The credit line is limited. If the commodity price exceeds the credit limit, it will naturally show that the transaction has failed and it cannot be used normally. In this case, everyone has to pay off part of the credit card before they can continue to use it.