Ado, can I use two tickets for room upgrade?

I can't. There are two kinds of room vouchers in Atour Hotel. One kind is a room voucher for the hotel to maintain the hotel customer relationship, which is called "free room voucher". This kind of room coupon is generally a free housing experience coupon given by the sales department to guests with potential accommodation needs. The other is the special room coupon that the hotel sells online on special festivals, which means one room and one night. The room upgrade voucher obtained in the hotel member center corresponds to one room for one night and cannot be reused. Atour Hotel started from the accommodation of lifestyle brand group.