It’s not 3 violations in one year it’s 2 violations, and one violation was dismissedThe background thing happened to me in September 2018. Difference with my situation was the app showed me as online, waiting for trips. I knew something was wrong after three hours and no pings. Checked the rider app, and I am not showing. Called the awesome support line and after hours was finally told it was the background check.
What happened is I didn't drive for months prior to September 2018, so I ignored the messages that I needed to opt in and consent to a background check. Uber without warning took me offline once I started driving again. Took a week to get back on, I don't have anything that would fail the CORI.
Seems like you do have violations that would cause you to fail, which is your fault, not Ubers. They run a check once a year AT LEAST. 3 violations in one year and you are deactivated.