Spammers

I played with a player named "idi na support" he was Zac I was Teemo he was telling me i'm a noob because i was 10/9 and I'm feding etc.I told him I'm not feding I got more kills so I'm not a feder man.And he sad /all Rep teemo flame troll feder and things like this How can riot fix these players?And he and another player called oshohm he sad after game "x9 teemo" "x9 teemo" idi na support: x9 teemo oshohm: x9 teemo look at him idi na support: x9 teemo