First thing first, I didn't ban you, illusion did. Secondly its your account, you take responsibility for what happens on your account. I have told illusion about this topic and will speak to him.
After speaking to him we have come to the conclusion that you did deserve the ban, as your account is your responsibility and so you should face punishment for whatever is done on this, in this case it was mass RDM on multiple rounds and then leaving to avoid punishment. The excuse of it being your friend without any proof is not a valid reason to be unbanned, so you will have to wait it out.
Denied.