Could somebody help me or shed some light please

Hello everyone, Ok so I have been banned from rank previously but since regaining it I have just quit playing rank for a number of reasons not needed to be explained. Yesterday a friend asked me to play rank as the draft game I opted for is supposedly a toxic arena he said which is true from my experience, but regardless I agreed to play some duo rank with him for two games, in which I opted to mute everyone without saying a word to avoid being banned again.... which made sense since the other 3 players in lobby where raging before they got into the game, I got stuck support both games as was last pick and we won them, I had good scores and I communicated with my team using pings and even sacrificed myself to save my carries where i thought i could. BUT I sign on today and i am banned... lol I mean come on i didn't say a word and I helped my team win 2 games how did I get banned for that, im sure as I have been banned before my case is not even looked at...

Is there anyway to dispute a ban? or see the reports and game logs of the game in which I have been banned for. Any help would be great.

Many thanks

FooSoo

Braum 4/8/26 Jana 6/3/21