There are three kinds of platinum cards (annual fees are 360, 680 and 3600 yuan respectively).
Under normal circumstances, you can avoid the annual fee by swiping your card three to five times a year. I suggest you contact the customer service hotline of Pudong Development Credit Card Center (86-2 1-38784988) for detailed consultation on your local policies.
If you really don't want it, you can cancel it (if you haven't activated it after receiving it, you don't have to cancel it and pay an annual fee).