I got a VIP card at Super 8 Hotel, but official website couldn't find the information.

I set up the VIP card of Super 8 Hotel in official website, but I can't find any information. If you have a VIP card, you can book a room in official website and log in as a member. The method is that you need to enter the city store you want to book and the date of check-in and check-out, click on the {Member} below, and a webpage will appear asking you to enter the VIP card number. This is a member login. You can book a room online at the member price, or you can not book a room in official website, and take the card directly to the hotel front desk for temporary reservation. You can only stay at the membership price if there are vacancies. The VIP card says it is valid for 2 years. You'd better write down the time and validity period yourself, but you can't remember it. For example, two years later, if you take your card to the hotel front desk to check in, their front desk staff will immediately tell you that the card has expired and send you a new card immediately-in addition, you can renew it for free.