CEX.IO Restricted My Account Without Warning and Took My Money!

Up until today, I have bought, sent, and received crypto via CEX.IO without any problems. They essentially conned me out of five hundred bucks. I bought USDT, then tried to send it to another wallet after making ACH deposits. I discovered then that I couldn't. Their "compliance" staff limited my account without warning! Only trading, holding, or withdrawing to fiat—of course with a fee—was allowed. I withdrew and lost money to their fees as I had no option. They never warned me, hence I emailed support requesting refund. None answered. Not sure even several emails later. CEX.IO stole my money and turned aside me. Be careful about their dubious methods!