The Golden Palace bonus is a sticky bonus, meaning that on your first cashout they take their bonus back. It states this in their T&C. You got lucky that you did well. The bonus is +EV if you play with the right sticky bonus strategy. this strategy is along the lines of betting it all on the first hand and hope to win, then flat betting to finish the wagering requirement. I think you'll win about 40% of these intitial bets (the rest of the difference in the HA is the ability to split and double down, which you won't have since you bet it all on the first hand). People here in another thread were argueing whether it was correct to bet it all on the first hand. I seem to think it's an OK strategy. For instance, if you have ten 300% sticky bonii to do you'll win 4 of them for about a $800-? profit. You'll win 4 giving you a $1600 profit minus the $600 you'll lose on the first bets on the other six minus or plus whatever wins or loses you have.