Sailed the Magic Chrsitmas week. When I boarded I inquired about spa specials and was told they would be in the navigator daily. I was able to see them ahead in the navigator app and even on day one, was unable to ever book a spa special as listed in the navigator because they were totally booked. Is this common? We are sailing the Fantasy the week before Christmas this year and have always wanted to do the spa special that includes 5 treatments. Should I give up hope?