Credit card limit changes may take some time to be reflected in the available limit.
After credit card consumption, the bank system may take some time to process and update relevant information. Even if you have already made a purchase, the available credit will not reflect the change immediately. Generally speaking, banks will update your account within one to several working days. Moreover, there may be other factors, such as bill generation cycle, settlement cycle, etc., which will also affect changes in available credit. If there is still no change after a period of time, it is recommended to contact China Merchants Bank customer service to inquire about the specific situation.