I feel like i was, Permanently banned from League of Legends EUW,

I started playing league about a month ago, and I do really enjoy it until now and I feel very shamed and annoyed. I was being banned for being "toxic" and being negative. I was matched up with a troller who was trolling the game and making the game enjoyable and distrubing other peoples lanes. Yes the game was very tight and frustraiting when having a baiter and a troller in the game. Even he trash talked through the whole game, and was being unpleasent to everyone in the team.

I don't understand getting away with trolling and baiting others and trash talking, without having a any punishment and making the game unpleasent for people who are trying to play this game. I spend money for this game I care about this game I put time and effort, and I deserve a ban for being "toxic". trying to be nice in this game dosent always work. The chat that i send through IMGUR was about in mid game when I was full of someone trying to ruin the game and baiting people for kills.

I really don't think because of that chat log I should be banned, maybe for "timeout" or penalty of 1 day etc something. but not banned. I would understand if I was being racist or assaulting or offending someone really bad. I don't see it as it worth of a ban. Everyone can agree that playing with trollers is not fun and drives you crazy.

Is there anyway of getting a permanent account unbanned or someone reviewing my account?