I called C&A to have some things updated on my C&A profile today. My wait time was only about 10 minutes and I was so lucky with the person who answered; I wish I had gotten her name.
Most probably know this already, but I did not and I'm happy the rep was so informative. I was able to change my Diamond gift from sodas to alcoholic beverages now that I'm Diamond Plus. There was quite a few choices to choose from.
Additionally, the list of cabin gifts to choose from was VERY lengthy! I chose the RC beach towel as my gift, but they were out of stock so I just went with the fruit basket and cheese plate. There was also champagne, various wines, truffle plate, chocolate covered strawberries, RC slippers......the list goes on (there were so many I lost track-it was over a dozen options)....I was impressed with the amount of options!
If you don't call each time before a cruise to change your selection, you will get the same each time.