I am not with full tilt but would have to assume if their bonus expires unachieved you would get that back. Am I right? I can’t see how they could charge you for something never paid out. And if that was the case I wouldn’t be promoting them very much. In 16 months with my main poker site I have had 2 negative days. On both occasions I was told it was because of tournament problems where all players were issued coupons and as the coupons were used I would recoup the balances.
As for blackjack it is seperate and if it were to go into the negative would have no effect on my poker income.
The only poker room I have that has ever had a negative balance is one that offers no deposit required free money. Great thing to promote but hard on the bottom line because most takers that I get only play with the free money which most lose rather quickly leaving me in the hole. To me this is a great promotion for new affiliates who have nothing to lose to get some initial signups (no negative monthly carry over) but not very good for profitable affiliates.