Hi! This is not how it was explained to me last weekend at WL. Our CM gave me three key cards, explaining that I was to be #1, and my sisters were to be numbers 2 and 3. She started telling me that since I had put only one CC on file that all charges would go to my card. BUT, she then added that if we wanted to bring up other CCs for cards #2 and #3, then the charges from those room keys could be placed on those CCs. I stopped her from further explaining, because that trip was my treat. Since only my CC would be on file, I saw no need to have her explain any further. Make sure you ask at check-in about this.