May I know how your refer a friend promo works because yo have said that we can receive $500 cash prize which is pretty big but what I am curious with is how we can check whether our referral are qualified player?

I like your special promotions specially those money back ones as we can get back our money if we can hit the condition for your promotions like if Messi scores 2 goals and etc. And a little query only, do this money back promotions didn't have a limitation or there is a maximum limit amount for money back?