Why is it frozen? The main reasons are:

1. If the cardholder's account is attacked by hackers or is at risk of being stolen, all rights to use the credit card should be temporarily frozen for security reasons.

2. The cardholder swipes the card at a risky POS machine, causing the credit card to be frozen. Generally, it is because there are risks in the POS machine, such as it is suspected to be a tx POS machine, it is suspected to be a second-clearance POS machine, etc.

4. The cardholder's credit card is frozen due to violation of bank regulations, such as cardholder tx, incorrect password multiple times, failed transactions multiple times, transactions across regions at the same time, etc.

After your credit card is frozen, you should search on WeChat as soon as possible: card review, get your credit card usage report with one click, find out the real reason for the credit card reduction, and you can effectively check the number. If it is because of If you encounter a hacker attack, you can consult the bank's customer service about the specific problem and promptly modify the account security information; if it is because of suspicion of tx, you can call the bank's customer service hotline, provide relevant consumption certificates to the bank, and then apply to the bank to restore the credit limit. If the card swiping is abnormal, as long as you insist on normal transactions and abide by the card swiping rules, the limit can be gradually increased.