Hijacked account - permabanned. How to fix?

Hello all!

My account has been permabanned.

This one's a puzzler. Through all the games I have personally played, I can say, with 100% honesty, that I have been relatively sportsmanlike through every game I have played. I have not made, or attempted to make any fraudulent actions in or out of game. I have never used offensive language in or out of game towards any other player.

My only thought is that this may be related to someone having hijacked my account before I discovered it in November after a very long hiatus. I had reset my username and password only to find my name had been changed, and I was a plat V (despite having only played a few placement ranked matches throughout my entire history of the game - not enough to even receive a ranking). I went ahead with a support ticket to resolve this issue. I got my account back, and received a free name change by Riot in order to change the Summoner name. I have played only ARAMs since then - I do not want to be playing with, or ruin the game for, anyone far outside my skill level.

For the last couple months, I have logged in every few weeks just to make sure the account hasn't been tampered with again. Then today I receive an email saying that my account was permabanned. Perhaps Riot may have misconstrued my inflated rank as ELO boosting. I have never tried to take advantage of illegal services.

The Support page directs me to recover my account. I know my username and password, so I am unsure where to go from here. I know this is a misunderstanding. I don't know if my account was hijacked again and did something serious. Is there anyone that may be able to direct me to the right place?

Thanks for reading :)

-Skittle