Read some FB post where people are getting calls if the names on the preview list doesn't match the room reservations.
One member said their son and his friend can't go to the preview because they are in different rooms than the member. But part of the traveling party. So if you have 2 studios, only those listed under the members room can go, but your other kids in the other room can't. Esp at poly when you have to get 2 studios for bigger families.