The short answer to your question is “$0”.
This is based on the current system that we and all the other MGS operators have.
All other MGS operators? I don’t think so and that really sucks. If I have a player that loses $1000 at a casino, that should be my player. If you convince that player to play at another casino, without crediting me, that is stealing my player. If he likes the second casino better, and becomes a regular at it, then I have lost that player and you are still making money from my hard work of getting that player to your site in the first place.