First of all, the adjustment of the line of Bank of Communications will generally be evaluated according to the cardholder's past card use. It is suggested that cardholders should diversify their consumption types as much as possible, such as household appliances consumption, catering consumption and supermarket shopping. , while ensuring a good repayment record;

Secondly, the bank will judge whether the cardholder meets the adjustment policy every month after the cardholder holds the card for half a year, and if it meets the adjustment policy, it will automatically increase;

Third, your credit limit has not increased. Maybe you haven't used your card for half a year, or maybe your credit card type is too single.