Problem . Big problem !!

Something bad happened last few days with my account . Somewhere around 2 weeks ago I admit I used assasin bug , got caught and banned for 1 day . Next day i used the bug again and got banned 2 days . Then I didn't log in for a week and 4-5 days ago I tried to log in . I realised I was banned again , this time permanently . I don't understand the cause . I haven't been logged in 1 week and i got banned .
Sorry if the post is not where it should be but I didn't knew where to post .
Acc. name : dutualex
Characters , Siel : Collisionx , Easywin , Pulifrici , Killaxz , Alexandruxtr , Lifetaker , Destroyerrx .
Characters , Lumiel : I do have a char but i don't play with it .
Thanx for the nice days here on server ! Good luck !