Assistance please. A player is impersonating Riot Staff

I have been approached by a player who has made the claim that i have cheated and that my account is now suspended. I consider this to be a clear violation of the "Dont impersonate" rule established by all games. I also consider it Slander/Liable and do not appreciate being called a cheater. Personally i'd like to see the little so-and-so dealt a permaban both for being an idiot and for the attempt to tarnish my name, gain control of my account or whatever the motive was. Who do i contact to get this toxic little pimple on the buttocks of the world removed from the game? {{sticker:slayer-jinx-unamused}}
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