The permanent limit of a credit card is determined according to the credit status and repayment record of the cardholder. If the cardholder can maintain a good credit record, repay on time and have a stable source of income, the bank will usually consider increasing the permanent credit limit of the credit card. Cardholders can communicate with banks, provide relevant financial information and supporting documents, and prove their repayment ability and credibility, and apply for increasing the credit card limit. Therefore, the permanent credit card limit can be increased.