Could i get punished for this?

Hey, I just came back from a 2 week ban with a new mindset, ive turned off my enter key and stopped talking completely and it's feeling so much better than flaming all the time. Anyway, I just had a really bad game, i decided to play neeko top (top is my worst role, but it wasnt ranked) and as it turned out I was against a draven top. I got smashed pretty hard as i had never played the matchcup before, and although i did get some return kills draven ended up being pretty big, and my jungler was tilting me alot by coming top and taxing my waves all the time, and kept complaining that i was feedingg and trolling even though I would ask if he could gank top while draven was over extended with no flash.

anyway I ended with the score of 2/10, not my best game at all.. the karma on my team was not happy with me at all. She kept accusing me of trolling and inting, and after the game she added me to tell me that she had recorded my plays, and would send them to Riot, and told me to have fun with the ban that I would soon receive.

of course its probably shit talk, but can I really get banned for this? I was messing about and not playing seriously at one point,, but in no way was I intentionally trolling or trying to lose my team the game. I was/still am a very toxic player anad I am trying very, very hard to reform, and so far its going well, haven't said a word in chat since i got unbanned and i think it's even won me more games since I'm not typing a storm to my teammates instead of playing the game. I'm enjoying myself way more than i used to without being able to talk.

Back to my original question, will I get banned? The karma also said my build was troll (I was AD neeko) and this wasnt even ranked, I was playing blind pick with my friends. Trying to chill out, waiting for the release of yuumi who i am planing to OTP. i just had one not so good game...is my account at risk?