I received an update today from my UK board with a reference back to Cruise Critic . See Link and scroll to item #24
As Tripp knows from experience a bit of that and a bit of this eventually provides the story
Suffice to say, It was a charter cruise (Bare Necessities) and the ship and organizer did offer options onboard once they understood his needs but were refused. It only shows how upfront you must be with what you need before you leave.
scroll to item #24
This was good to read as you can see people in charge trying to help but to no avail.