If they are open about asking such high waging requirements for people to withdraw their money from their accounts then they are clearly not a scam, they are just a very unfriendly casino to their customers, and since that is the case then gamblers need to also be very unfriendly towards those casinos, as what is the point of gambling there when you can do so at other casinos that are nowhere near as strict when it comes to their policies?
They will choose another casino if the casino policies and regulations are not in favor of the gambler, every casino rules must be fair and not make it difficult for high withdrawal values, if the casino does not change the policy soon then many gamblers will choose another casino option, many of the top casinos on the forum have gain the trust of the betting community.