Basically, you can't change the card type unless there are special circumstances: First, the card type won't help you change other cards (but customers can't choose by themselves). For example, CCB issued a Yao Ming card, but the Yao Ming card didn't cooperate. If you expired, you changed it to an ordinary card. The second is card type upgrade, such as upgrading Puka to Gold Card, upgrading Gold Card to Platinum Card, and so on. Both appeals were initiated by banks, and customers could not choose.