The unified billing date for ICBC credit cards is the 1st of each month, and the repayment date is the 25th, so the ICBC counters are very busy and crowded after the 20th.

Also One way is to apply for a Money Link card, deposit money into the Money Link card, and then apply for the Money Link card at the counter to automatically repay the credit card, so you don't have to go to the bank counter every month.