In poker you aren't playing against the house, you're playing against other players.  Instead of a "house edge" the house takes a commision based on how big the pot is (in cash games) or on how much the buyin is (for tournaments). 

As part of the loyalty program/affiliate program, Betcoin returns a % of the commision they take to the player/affiliate.

Unfortunately, Betcoin doesn't return the % they advertise.  Instead of adjusting what they advertise, or returning what they advertise, they choose to lie about it and cover it up.

Because of the nature of the game, most players do not realize they are being shorted.