Peak

What do i do with this?

So my name is Peak in CSGO, yesterday i got banned for using the wrong keybind which was fake advertising to an aimbot (its a joke dont worry), and i was unbanned very fast, which i want to thank the admins and helpers on the server, but when i was challenging my friend (one shot man), i sniped him and killed him, then i was banned, i dont know why, i was talking to him on discord and he doesnt know why also. please reconsider this. Edit: I have been banned for reg 10, whatever that is.