So I participated in one of the free bonus offers in :
https://bitcointalk.org/index.php?topic=482651.msg5639015#msg5639015 , I got the bonus, played and lost and the game finished here (I though so).
Few hours later I accidently clicked my "Trust" button and noticed a + FB for greenservice and - ve for royal-casino (his competitor). I immediately changed the passwords and after some investigations I noticed 2 unfamiliar posts in my history:
this website is scam I tried it too never got my withdraw. at royal-casino topic,
I guess it's pretty clear now,I was an idiot for using my pass on that buggy casino page, be warned.