Was banned for "disrespectful behaviour".
I acknowledge my fault, i cursed towards player BornToSmurf (or whatever was his name), it was in the middle of firefight when I was left with a few HP and he casually sneak up on me and backstabbed. I know, it's part of the game mechanic, but I was really frustrated at that moment and lost control over myself. Then I got kicked, rejoined server later and played for about 30 minutes, then left in normal way. I dodn't log in for about 2-3 days, I joined server today and then got instantly kicked with ban message.