1xBit stole me 0.5 BTC!!!

I was customer there for some months...its my first and only Account there and everything worked fine for months ( smaller deposits and withdraws possible without any problem).
Then I made deposit of 223 MBTC and had a good run up to 563 MBTC.  Account got limited and I couldnt place any more bets so I made a withdraw request of the full amount. They declined it and said that my Account is under investigation. On the next day they told me that I made violation against the rules ( didnt want to tell me which rule I broke!) and I am only allowed to withdraw the ''deposit Sum of 63mbtc'' ( But made deposit of223 mbtc) and  THEY VOIDED all my bets and STOLE 500 ( fivehundred!!!!) MBTC !!!!

Always asked why and which rules I broke but everything they wrote to me the whole time was:
''You can withdraw the deposit sum only''

BIGGEST FRAUD EVER

https://i.gyazo.com/4f0e299dc75cd451d7ed3e15261bc69b.png