Stole my money and closed my account with no explanation

I had an account at Star Games, where i ve played only backgammon
This account was opened a few years ago and after identity verification, i ve made my first withdraw in 2012 and during 6 months and Star Games told this delay was due to risk of chargeback, i dont uderstand until today what means this.

2 years i didnt played at Star Games for this delay and in 2014 i played again and this time the withdrawals works better 3-4 working days but until December was very small withdrawals 50-100 euro
In january 2015 I’ve deposited 100 euro and winnings was 200 euro and i ve made an withdraw 230 euro and remain into my account 70 euro but surprise they blocked my account and stole my money ,no withdraw ,no winnings and no my deposit all the money lost.

I ve sent an mail and they answered they permanently closed my account because T&C (terms and conditions witch i didnt respect) ,and i ve told wich terms and they no answer .

I have a single account and i ve played with different players from different country they give me a bonus a 3 years ago but i ve loose it my winnings was only from the games with different players and only from December 2014-january 2015

I ve played from my computer and from the computer wich i have at my work place, its possible that computers used from another person because i am a teacher in a school and many other have acces to that computer but no terms and conditions speak about this they only told about 2 accounts opened from the same computer but there is no interdiction to use my account from public computer like school computers or internet cafe.

So please help me they stoled not only my winings 200 euro but also my deposith 100 euro.

Thanks a lot!