The credit card suddenly has no available balance?
The credit card suddenly has no available balance, probably because of the bank's risk control, which leads to the credit card being downgraded. In general, the credit card withdrawal balance is included in the available balance. If the credit card limit is not used up, the available credit card balance will always exist. Therefore, only when the credit card is downgraded, the credit card will have no available balance, resulting in the cardholder being unable to spend and withdraw cash.
During the use of credit cards, banks will monitor the use of credit cards. If the credit card has illegal operation, it will be controlled by the bank's risk, which will trigger the credit card downgrade. Once the credit card is reduced, the reduced amount of the credit card is included in the credit card bill, which requires the cardholder to make a one-time repayment, which increases the repayment pressure of the cardholder, so it should be avoided as much as possible.