Your post might be sarcastic but I will still for those somebody doesn't know. If this bet is from no deposit bonus requirement promo, even if he wins or hit max win he will only receive a maximum of $20 according to the terms and conditions of that promotion. I feel bad for those who participated and those who had the idea for this promotion; it really makes the casino look bad.
I remember @panjul also experienced this when he was playing at Sherbet won higher amount based on the said promo.