SUMMONER SPELLS

Why is it an available that this company still allows people to troll? Just had a j4 go ignite/teleport while he was placed in the jungle. Didn't speak in the champion select so my top laner/aatrox took smite and went into the jungle. J4 then continued to troll the game, following me every where I went. I was the mid laner, and was being punished because he wanted to troll. I am trying to get out of bronze, but I can't do anything when this company does NOTHING ABOUT TROLLS