it would be nice if you say what site you mean so that colleagues here review the truth. that way you can save friends who try gambling sites that you mean.
here you cannot be fully trusted if you do not show any evidence, even if you make several lawyers handle your case if there is no valid evidence I think it will be a waste of time.
Well, you are right and this is also the most people awaited above, --the response of OP about this problem of gambling site so that we also aware of their services had. Compilation of concrete evidence will always a good as a solid proof and perhaps the gambling site that he meant was going down and there are no gamblers who will use the site. Indeed, it is clear cheated if the result of the seed is not visible to the player, it can be verified by us if we know the hashed seeds.