1. Both the main credit card and the subsidiary credit card issued by Agricultural Bank of China support the basic functions of credit cards, namely, credit card overdraft consumption function, credit card overdraft cash withdrawal function and credit card installment payment function.

2. ABC's main credit card can exist independently, and the subsidiary credit card of ABC, as its name implies, must be based on the existence of the main credit card before bidding.

3. Two credit cards share the credit line of the same credit card account, and the transaction is recorded in the same bill, and the cardholder will bear the credit card repayment responsibility.

4. Under normal circumstances, the personal points accumulated by supplementary card transactions belong to the main card account.

5. Supplementary cardholders may not apply for credit card withdrawal.