Do 7 Days Inn members get one night free by staying one night?

New members are only available, and only once, in a designated branch on a designated date. I don’t know if there is such an event now. This is considered an event, and it is irregular... but a special room of 77 yuan and 88 yuan will be given. This is definitely available, and it is also available in designated branches. The room type is the economy room for members.