Why would you like to tag bookmakers? By the time you register on the gambling platform, you are agreeing to their Terms of Service. If you violate any of the points of the rules, your account may be blocked. If the casino or bookmaker works with the rules, there's nothing you can do. Limits can be changed by the bookmaker whenever he wants and there is nothing you can do about it, because they have the right to do so according to their rules, to which you agreed.
Your post is weird bro. I don't know if you are a scammer accomplice or just a spammer but you are not a gambler for sure, otherwise you wouldn't care more of casinos than customers. According to you casinos have the right to do whatever they want but customers shouldn't have the right to complain, and even to tag them? Why they wouldn't have this right I don't understand? Casinos have to respect their Terms of Service, the laws, the norms, the ethics and to stay honest and professional toward their customers, if not, customers are free to retaliate to get justice.
BTW where you have seen in their ToS they are free to discriminate users and changing their limits as they want? Could you post ToS where you have seen that please? I'm curious.