What do I have to do to get this account permanently banned.

Hey, I know I'm going to get some hate for this but whatever. Bought this account about a year ago to smurf on, quit playing forever and recently came back to the game. Randomly logged on the LoL website and amazingly the seller still hadn't changed the password. I assume he will do so at some point and try to resell it. So I went into a ranked game and said some of the most heinous shit I could think of. I would post the chat logs but honestly it's so bad that I don't want to. Anyway after I said these things and afked from the game I attempted to relog into the account and it only got a 14 day ban. Wtf do I have to do to get a permaban on this thing? I figured with what I said it would be an instant permaban but nope.

Anyway my apologies to the 9 players who's ranked game I just ruined. I am genuinely remorseful for that, but I cannot allow this account to go unbanned. Hopefully this forum post will do the trick.