Ado can't get a room upgrade by using the room upgrade coupon.

Atour can't upgrade the house with the room upgrade voucher for the following reasons:

1. level is not enough: users need to stay in Artur Hotel enough times and reach a sufficient level before they can use the room upgrade voucher.

2. Unable to upgrade the suite: According to the hotel regulations, the room upgrade voucher cannot be used to upgrade the suite, but can only be used to upgrade the ordinary room.

3. Insufficient inventory: If the room corresponding to the hotel's room upgrade voucher is insufficient, it will also lead to the inability to upgrade the room.

4. System error: In some cases, due to system error, users may not be able to successfully use the room upgrade coupon.

If you encounter the above problems, users are advised to contact the customer service of Atour Hotel directly for more detailed information and solutions.