I joined Urcomped online
It’s free and you fill out the info and include screenshots of your Best cruise casino offers or land casino offers
They deal with Royal, Celebrity, MSC, Holland and Virgin
If you sent them say Copies of Comp balcony offers you had from Carnival they’ll basically match the comp on the lines i mentioned
Through them it’s how we took our Very first MSC and Royal cruises
And it’s how we are taking our First Celebrity cruises this year both with comp balconies to start and we upgraded to a Sky suite on the Solstice one
IF you’ve already cruised on Celebrity or any other line i’ve mentioned Already in the past year they can’t get you a comp on it but can on any line they deal with that you haven’t tried
But in our case since we never cruised on Celebrity we qualified and now have many many many comp balcony offers from them……You can keep booking them through Urcomped