I got permanently banned for toxicity
This is really unfair and I wouldn't have made this thread if I knew that it was my fault. I've been banned 14 days for toxicity 2 weeks ago and I admit my actions as I insulted one of my teammates because I've got tilted ( not even serious insults, i only said "trash" and "garbage", no "kys" or other really bad words). I came back from those 14 days and I swear there were no insults, I tried to help team, I even said please, but I never insulted a single teammate by calling them "retarded" or really bad stuff like "kys". I know some of my friends that are more toxic and I told them to not flame the team and I really did my best now to not be toxic and I was not. There are no insult words and I want to get proof why I've got permanently banned. The only proof I get is one single game where I got 1 report from a nidalee who got reported by the whole team. I only called that her champ is useless late game and he shouldn't have picked her in the first place. I really want to know why this is a PERMANENTLY banned offense and would like to see some exact proof of my insults. I did my best being as sportsmanship as possible and trying to keep it clean and I haven't insulted anyone and haven't said anything that might threaten my team mates irl. I will attach below the photo so you guys can see if this is fair or not. I'm not the guy who makes 100 accounts and flames on them all. I really loved my account and I invested in it a lot of time and money, I really dont want to lose it for saying stuf that wasn't even insulting, this is not fair. What do I do?
Proof: https://imgur.com/a/brjJF