1. Bank cards are frozen for various reasons. In some cases, credit cards and debit cards may be frozen. The credit card has abnormal transactions or overdrafts exceeding the limit. Although the credit card shows the limit, it is no longer available. If there is still money on the bank card, but it can't be used, it is also frozen. The most typical is the judicial administrative freeze, and the bank must cooperate; In addition, the bank finds that the bank card has a wrong account to deal with and may be frozen.
2. There are some special circumstances or misoperation in the bank card itself. In addition to the freezing mentioned above, there is also account locking, that is, there are three consecutive password errors in the process of swiping the card. The banking system will automatically lock the funds in the bank account because of abnormal transaction operation, which will lead to money in the account, but the transaction cannot be realized, but it will be automatically unlocked after 24 hours.
3. The bank card has expired, and it has become an expired card. If you don't apply for a new card, the funds in the bank card will be locked and cannot be used.