its not just rtg that work this way – most places are the same.
Think of it this way :
Bonus funds are not real money that can ever be won by the casino – so there is no way that you are ever paid for it. It’s deducted from any REAL player losses.
A simple example may help :
A player joins up and deposits $200 on a 100% bonus and then plays all $400 and loses it all.
Now – how much profit can the casino make?
– $400? No.
– Only the $200 deposit.
So real profit is :
– $400 gross less $200 bonus = $200 net to be shared with the affiliate.
It’s no more complex than that.