ICBC's credit card line is 3, yuan. After using 1, yuan, the available balance of the line is , indicating that the line has been used up. The industrial and commercial credit card has a line of 3w, but the available line is , which means that the user has used up the line of 3,, so there is no available line at present. When the user returns part of the arrears, the available amount will be restored. Or the credit card may be blocked by ICBC if the user has returned the arrears and the repayment funds have arrived, and the available amount is still . Under normal circumstances, the credit card will be restored after repayment, while in the case of risk control, ICBC will withdraw the available credit card if users are not allowed to continue spending by credit card.