Did not receive email about ban

My account was banned for 2 weeks. I found out when I tried to log in yesterday. The popup window told me I was banned until October 5th, and told me to check my email for details. I checked my email, but have not yet received an email from riot.

I check to make certain the email address riot has is my actual email, and it appears to be the case.

I am fairly certain I know why I got banned, but I would like to see the actual reason.

Thanks for any help.