1, fixed credit line improvement method:
If the credit limit is raised for a long time, you need to call China Construction Bank's 24-hour customer hotline 4008200588 to apply for credit card limit adjustment after the card has been held for 6 months. According to the repayment records of BOC credit card holders in the past six months, CCB will inform customers of the audit results within one week. If cardholders can provide some proof of assets when submitting their applications, they can get a higher credit limit.
2. Methods for improving temporary credit line:
If the credit limit is not enough, you can also apply to the bank to temporarily increase the credit limit, and CCB will adjust it for you according to your credit status and card use. If you need to temporarily increase the credit limit, you can call the 24-hour service hotline and provide relevant information as required. The temporary credit line is valid for up to 3 months, and your credit line will be automatically restored to the original one after expiration. The credit limit of the secondary cardholder is set by the primary cardholder. If it is necessary to adjust the temporary credit limit of the secondary card, the cardholder of the primary card must apply.