Can I return the golden childhood photo card if I haven't spent it?

Do you know why merchants are keen on handling cards? Consumer cards, VIP membership cards, and so on, all these are to trap you, so that you can only spend money with him for that little discount and points. Whether to return the card depends on the merchant. The merchant has trapped you, so why not let go of this fat meat? Even if it is returned, it will be very troublesome, and it is necessary to collect money in the name of fees. This is a more unprofitable business.