Some casino are fun of doing that kind of things to their players and the only thing their after is to just move away with players' money with some flimsy excuse and accuse the player of violating the term and conditions which are not true since they will not state any possible reason for doing so because it's their way of operation and they're known for such bad reputation and lies.

So the best thing is to avoid such casinos in all totality since you will end up losing money if you deposit into them.