I need help

Firstly I created an account from 4 or 5 years I played many times on this account and from 1 or 2 years I got banned
I didn't know how I get banned at that time so I talk to support they replay you used a type of hack so you got banned permanently
but I didn't use it ,on the other hand I report who are cheated.
Then I know there is someone got access to my account he maybe used a hack I don't know until now .
so I talked to support they reply with same reply .
I got angry so I tried to talk to any of the GM's but nothing happens.
I tried to open my account from a month ,they have removed my account and all things at that account I have lost .
I have archived many things things and spend too many time on it and they easly delete my all efforts.