This is the usual CPA mess.
I have said it many times before:
With some exceptions where the player value matches the CPA exactly, there is always one partner losing on CPA.
If it’s the poker room/casino/ bingo who is losing, they will quickly put a stop to it. In this case, the room was losing money at $100, and also had to set a value per player that needed to be reached, even for a $30 CPA.
If the affiliate is the one losing, they will never know for sure. But – the happier the room is to pay the CPA, the more the affiliate is likely losing.