Long story short..(hopefully)..we currently have two cat 9s booked for June 15th Fantasy. Our 18 year-old DD and her BFF in one room, DH and I in the other. Her BFFs parents might book later (for the same sailing.) If that's the case, we'd then like to move our DD to our room so BFF can share the other room with her family. Would our DD still get the 10%, since we're increasing the number of people in our stateroom?