So if I bet $3000 and win then I get my winnings and no bonus dollars. If I lose then I get the bonus dollars to use on another bet. I've never done any sports betting but it seems like a good deal if you're new to FanDuel and have the discipline to only make the one or two bets. Seems like 50% you'll win $3000, 25% breakeven and 25% you'll lose $3000 (ignoring fees.) Normally there's not enough money in these deals to make it worthwhile but $3000......maybe.