CCB's fixed credit line is not fixed, and his system will systematically screen customers who have used the card and adjust it automatically from time to time (the so-called irregular means that no one can determine the adjustment time).

Regarding the use of credit cards, it is suggested to diversify consumption, such as shopping, eating a meal, singing a K and so on. If you can swipe your card, you can also use it online. It is best to combine online shopping with physical stores. Don't swipe your credit card frequently, and pay back the money on time according to the total amount payable in the credit card bill, which is more conducive to the accumulation of credit and the adjustment of credit limit.

At the same time, if there is a temporary need, you can also apply for a temporary credit line through CCB WeChat (China Construction Bank), mobile banking, online banking, customer service hotline self-service voice system, and SMS (edit the SMS with the mobile phone number reserved in his home system "Credit line is to be adjusted to the last four digits of CCTE# card number)" to 95533. (It is recommended to use the card for 3-6 months before trying to apply. )