My account was hacked

Hello,

My account has been hacked.I found gamesplayed with wukong(which the person who played bought, because i never even bought him) and kha ziz, which I don't play. I only play miss fortune. Moreover, I got a 21 game chat restricted but I never sent those messagges. I created a ticket but I'm not receving an answer and the season is ending. Is there any way a rioter here could check my account and check the IP address of those games so he can check it wasn't me and removing the ban?