Welcome, you are really the first thing that came to my mind and I remember when such matters because you helped and guided me on how to do it.  Of course, @efi and his Gosu platform are included.  Maybe the others, in the beginning, do not pay attention to the verification of their bets, and only then will they doubt if it is fair when they have experienced a severely loose streak especially if they do not accept defeat.  But when you gamble at reputable casinos you have no fear of fraud.