I've Left multiple games, because players were using foul language towards. I then decided I couldn't deal with this in 5 occasions this has happened and Riot has placed my account under a tribunal suspension. A level one leaver I feel this is wrong and if this is how your going to treat players I want my money back.

Tribunal and Leaverbuster are two separate systems. The lesson here is that leaving your games is just as disruptive as the player using foul language and insulting your teammates. Your leaving the game makes it just as hopeless to win the game for the 3 other players that are dealing with the offensive person.

you cant just leave games op. thats a violation of the rules.
two wrongs, etc, etc..

yes but this is violating my human rights because i'm sick to death of the toxic players

Just mute them or don't talk at all in the chat. Then report them, simple as that.

Geekweezul has a very well point there