The credit card limit of CITIC Bank has decreased, which may be due to the following reasons:

1. If it is overdue:

If the credit card bill is overdue, the staff of CITIC Bank will think that the cardholder's credit is poor, so the credit limit will be reduced.

2. Abnormal account:

If the cardholder frequently conducts large-value transactions and the consumption type is relatively simple, it is easy to form the impression of abnormal account in CITIC Bank system, thus reducing the credit limit.

3. Don't use the credit card for a long time:

If CITIC Bank's credit card has not been used for more than five months, the banking system will think that this card has serious security risks, which is also easy to be downgraded by the bank.