Thank you for an objective investigation

Hello, I received a permanent ban. I do not understand why. I play with a steam, there is no demo, since there is no automatic recording, I do not specially record it.
Server: 185.236.8.13:27015 (DEATHMATCH #2)
Nickname: Navalny
STEAM_0:1:59906492

This is some mistake, I have a clean steam. I would ...