Wow you have a great fan base and any casino losing you will definitely  feel the impact atleast for the moment and since you're already an established  member, why didn't they come up with something and let you  work on something.
I've read some similar  stories  where it seems most casinos seems to be jealous of the rewards and winnings of their players and customers especially  when it seems the casino  is greatly on the losing side.
Well you have to be careful  when choosing the next one and I alsonfeel for you because you will have to work extra hard again because  not all your fans would want to follow you to the next casino for maybe some personal issues or maybe they ready favouriting the previous casino  already.