Thanks for all the replies. It sounds like it will be easiest to leave things as they are and just switch cards. Then when we go ashore, switch cards so they match up with the facial recognition.
I simplified my question, its really even more complicated, there's a third cabin involved that is also switching, lol. One good thing, none of us are big drinkers or gamblers who might run up the bill and not want to pay up at the end.
Can each individual in a cabin set up their own account, so Bob is in cabin 1 and has his own bill, and Alice is in there too and has a separate bill? Or is the bill per cabin?
Thanks
Tony