banned

I was player normaly in OaO dust2 only server in Dust 2 New, then we switched map to Dust2 old and accedantly got banned for no reason , but i was getting about 12 kills - 23 deaths in dust 2 new cuz i have bad lag in this map ( about 30 fps ) but in dust 2 old i got 11 kills - 0 deaths ( M4a4...