If you are only told your cabin number when you are checking in, how do they get your luggage to your cabin with no info on the cases?All unmarked cases are put in a specific place well known to the crew. You attend reception and say "cases have not arrived at cabin but were not marked with cabin number as it was not known" They find the cases by description and you identify them and they take them to cabin.
Ships cruised on
RMS Queen Elizabeth, SS France, Oronsay, Oceana, Vision of the Seas, Caribbean Princess, Aurora,
Queen Mary 2, Star Flyer, Star Clipper, Grand Princess, Queen Elizabeth, Azura, Ruby Princess, Ventura, Diamond Princess, Britannia, Emerald Princess