Okay, so what you are trying to withdraw is basically your money you deposited and not winnings from games you played in the casino. That should be easy for them to verify and get this over with, i understand that casinos sometimes try to frustrate customers out of their winnings, but they do not have problems returning deposits, so since it is your money you want to withdraw, they should easily give it to you, let us wait and see what will happen when the matter is escalated.