My whole Youtube channel just got demonitised.pic.twitter.com/9wEp0RcGFt
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
While we can't go into specifics. The email and notification has more info. Take a look at those resources and note that you can always reapply for the YouTube Partner Program again in 30 days.