Just call RCL and they should be able to override it for you. I know people that have done this with no medical or religious reasons given. They just state the fact that the other person in my cabin does not drink alcohol.
I know my cousin got the Deluxe and his wife got nothing. She did have a medical reason (recovering from throat cancer) and could only drink bottled water. They ordered a case for their cabin via RCL, plus carried on 12 17 oz bottles of water. They never asked for him to submit any medical documentation.
My brother on the same cruise ordered the Deluxe, my sister in law only drinks a glass of wine at dinner, and no soda at all, just water and 1 ice coffee a day. RCL did not make him purchase anything for her and didn't even ask the reason why she was not purchasing any type of package However, RCL may have seen in their order history they had purchased a coffee card. They carried on water too.
My other cousin also called RCL. He drinks only bottled water which he carried on. His wife is like my SIL, a glass of wine at dinner, but she wanted the refreshment package for mocktails and soda. They overrode the system so that she got it and he didn't.
