Well, so far we see that on the part of the OP there are only accusations without evidence, of course everything could have happened exactly as he claims, but if so, then you need to bring the available data about it otherwise it just looks like hate and nothing more.
I am sure when he provides such evidence if he will,then the support of Stake will 100% give him the deserved prize but first we need that evidence because without it,it remains the word of a person against that of an entity.I know that Stake puts huge bonuses every week in the Promotions section of their website and they look with a better eye for the VIP level users because they are what make the most part of the wagering so they should absolutely have given him the bonus if the OP was in the right of receiving it.They will not ruin their reputation for such a small thing.