Banned upon login unbanned upon relogin

i logged into the clients at 11:40 -45 pm September 30 central us time and received a notice of being banned upon trying to go to match selection i had mild panic attack before calming myself down and checked my email for any message regarding on any possible bans reasons. I didn't receive any notice of ban so i decided to re-login a few moments later and my client no longer had the ban notice with the match Selection functions working properly. This isn't Likely a common occurrence but i decided to report the bug just so it can be addressed in the future