I would say RCL made a huge error when they changed the format and grandfathered in all those Floridians who whipped up to Diamond + on 3 night inside cruises. The credits should have been given as they were earned. 1 night = 1 credit. Those people really got 1 night = 2/2.5 credits. They didn't help themselves the way they did it.
Same with allowing recognition from one of their lines to the other. First cruise on Celebrity should not have allowed so many to be elite.
One day we will all pay for that. As soon as they can figure out how not to make too many super angry I guess.
As for the airlines etc that have an expiration date, you get something for your points with them. You actually have to surrender your points to get your free air or whatever.
Perhaps the cruiselines have to do something like that.
Celebrity Constellation - March 17 followed by Celebrity Reflection - March 22
44 cruises - too many to list however cruiselines are in no particular order:
and some unknown tub
Yes, I'm a Royal Chump and proud of it.