Ping An Bank’s credit cards of different grades and types will have different annual fee charging standards. The main annual fees are as follows.

1. The annual fee for the main card of Ping An Bank’s regular credit card is 100 yuan/year, and the annual fee for the supplementary card is 80 yuan/year.

2. The annual fee for the main card of the Ping An Bank Gold Credit Card is 175 yuan/year, and the annual fee for the supplementary card is 125 yuan/year.

3. The annual fee for the Ping An Bank Credit Card Platinum Card is 2,800 yuan/year for the main card and 1,800 yuan/year for the supplementary card.

4. The annual fee for the main card of the Ping An Bank Diamond Card is 10,000 yuan/year, and the annual fee for the supplementary card is 6,000 yuan/year.