Judge based on whether there is a need to increase the limit. Bank of Communications 5000 card maintenance needs to be used according to whether there is a need to increase the limit. If you don't want to increase the limit of your credit card, then just don't use it; if you want to increase the limit, you must use this credit card, repay it on time, and increase the limit cyclically. Things to pay attention to when using Bank of Communications credit cards: Be sure not to use up all the credit limit as soon as you open the card. Leave 30% of the credit limit for the new card, and do not make installments in the first 3 months when you apply for the card; frequently participate in weekly credit card activities and transfer money the day before the bill date. Save it and wait to spend it the next day, but don’t spend it all right away.