Unibet now has a $600 free bet if you lose the $600. Up to $600, plus 3 $10 bets. New accounts only. They also give money back, on Tuesdays, for deposits/action. There’s not really a formula with that. I deposited $600 last week and have $600 in my account. They gave me $150. I thought you have to go busto to get it but apparently not. The most I ever received was $500. Good offer to hit and run.