Insufficient available credit.

The credit card showing insufficient balance means that when the cardholder uses the credit card for consumption, the available balance is insufficient to pay the transaction amount, causing the transaction to fail. When a cardholder uses a credit card to make a purchase, the bank will check it based on the cardholder's available limit, transaction amount and other factors. If the transaction amount exceeds the available limit, the system will prompt that the balance is insufficient and the payment cannot be completed.