Wrongfully banned, I think my account was hacked.

My summoner name is FancyBirdNA, here's a link to my op.gg so you can see my match history for yourself: https://na.op.gg/summoner/userName=FancyBirdNA

First, I would like to state that I'm a full time college student at the University of West Florida, and have been playing League of Legends casually for about four years now. I have treated the game like you would any other hobby, casually and with friends. I have one chat restriction on my account record, but that was because I was repeating what someone was saying to me in an ironic way LiKE tHIs (insert spongebob meme here), and may have repeated him calling me the R-word. Way to go, Cody.

Now as for the ban on my account, it was stated to me in my report that I was banned for using third party programs, though I have never downloaded anything to affect my gameplay in the entire four years I have been playing. The last game I played on my account was the Urf Warwick game, where I went 13/9/7. As you'll notice from my match history, there are three ARAM games after that one. I did not play these games

I have never given out my LoL password to anyone.

I believe that I may have been hacked, and this would make sense, seeing as how the games are ARAM games and that gamemode is used a lot with bots and what not for leveling accounts (even though my account is level 192ish). I am unsure as to what happened, but would gladly like some advice from anyone in the community if they have any. I have spent roughly $3,000 on this account, and really don't want to lose it over something like this. I have already thrown in a support ticket to Riot and am waiting on a response from them hopefully sometime soon. {{summoner:50}}