I know that somebody compromised my account and made purchases using my account, but i feel like i shouldn't be banned permanently for something someone else did. It says to check the email associated with the account, but i have yet to receive an email. 
It can take them a day or two to reply to your ticket, depending on the volume of tickets they have at the moment. Be sure to check the spam/junk folders of your email account as well.
If you reported the compromised account to Riot, it is possible that is why your account was suspended. It's part of their standard procedure to suspend any account that is reported as being stolen/compromised until they can verify the correct owner. It's not the same as a permanent suspension for behavioral violations or other rule infractions, and when they verify the correct owner, they unlock the account to that person.
Best of luck with support, and I hope they get back to you soon, and everything is resolved to get you back on the rift quickly!
Contact Riot support using a support ticket. Follow the Support link at the top of your screen.
