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

1. Transaction equipment failure

If the credit card cannot be used, it may be due to equipment failure besides the credit card. You can try to restart the equipment and use it by swiping the card after connecting to the network. At this point, if it is a problem with the equipment, normal transactions should be possible after the restart.

2. Illegal use of credit card

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, which will lead to the suspension of the use of the credit card. At this time, the credit card will not be used normally.

3. Spending in a different place or abroad

Sudden spending in a different place or in consumption abroad is also easy to be subject to risk control by the banking system, so risk control will be carried out for the safety of the card. In this case, the cardholder can contact the customer service of the bank to explain that he will resume normal use after spending his credit card.

IV. Reaching the credit card limit

The credit limit is limited. If the price of the goods 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.