@Riot, is this an illegal way to get trolls to play properly?

So basically what I do is pretend that I know someone from Riot and they will get banned if they keep it up. For instance last game our Ryze told us "fuck you trash noobs im afk" and I said "i know Lyte personally ill just get your perma banned" and they usually don't believe me and just say "lol ok sure you do" and after I say "ok well Jeffrey really doesn't like afk trolls im sure you'll enjoy a perma. Jerffrey is Lyte btw we went to college together, good friends. I'll just ask him after he gets off work." and well...it works. After that the Ryze said "well i wasnt afk lol jk." This also didn't just happen with this Ryze I've done this multiple times to intent feeders/troll afkers on my teams and it works generally 70% of the time. It's a lot more efficient than just saying "ill report you" they don't care. So Riot is this a bannable offense by me?