Earthhouse2

My wife and I took our first Royal Caribbean Cruise last year. It was great. However, I do not understand why she was invited to Casino Royale Club and not I. I wager much more than she, and play both slots and blackjack about the same amount. We both used cards in the casino for play rating. Am I doing something wrong? We headed on next cruise with RC in several weeks. Like to get all the benefits I can?.