I hate to be the bearer of bad news but... I asked around several casinos [not just betpanda and BC] and ask for their insight on how sportsbook decision works, and uhh... sadly I think this is it. There is no other thing to do. Sportsbook division on gambling platforms [the one I asked] have their own risk assessment team, I believe it come from their own too instead of the platform itself. The call to forfeit was made by the team [namely the provider] and the casino [in this case, Rollbit] can't overrule it.
So there is no hope for me? They will just take all of my money including wins?
Not all, I believe. Like Mahdi said above, usually casinos will return initial deposit and only void the winning. The casinos who walk on this forum [with one or two as exception] are here for long term. They seek profit fairly through house-edge and other methods, not by unjustly confiscating funds. So there is a chance you'll get your initials back.
May I know what your deposit amounted at?