1. It is written in the credit card contract that you can only use it by yourself, but it is not allowed according to my mother's theory. But now many people don't read it, so it should not matter.

2. You can apply for an additional card for your mother’s credit card, so that you can enjoy the credit limit with your mother.

3. The credit limit is the maximum limit for all cards in the cardholder’s name (including principal card and supplementary card), as well as the maximum limit for RMB accounts and U.S. dollar accounts.

4. Each card (set) of the gold card is RMB 300 per year, and the supplementary card (set) of the gold card is RMB 150 per year; each card (set) of the standard card and ordinary card is RMB 100 per year, and the standard card is RMB 100 per year. Supplementary cards and ordinary cards are RMB 50 per card (set) per year; VISA Mini

card sets are RMB 150 per year, and VISA Mini card sets are RMB 75 per year for supplementary cards. ; NBA card main card only charges RMB 200 for the first year, and supplementary cards are exempt.