I was banned and i dont know why

I dont play as much as other people here, im polite and i follow the rules of servers, i would like to just know the reason for my ban that last i think 1 mounth. I would like to be unbanned just to play on server where i can communicate with other people and relax after work. My username is SRB SARAN. 
Thank you in advance.

My younger brother had a profile named Okin (he introduced me to the game and i like because im a war veteran and mosly i like it because of communication and complexity) he stop playing it so i changed the user name, i played it like usual finished the round said gg and next day i was banned , can you help me with this please.

Very understandable decisions from admin,my brother is stupid like that. He doesn't play the game anymore,that why he made me new account so i can play, it is the only game i play and enjoy playing it in my free time. If you can help me and unban me i would be very grateful. I can promise that i am respectful and well mannered person and no other transgression will from this account.
Thank you in advance SRB SARAN