Hi there, we'd like to help. To confirm, was your channel monetized earlier and now demonetized, or is it the first time you've applied and were rejected? Also, please share a screenshot of the monetization page and your channel URL: https://goo.gl/297Xrv . Keep us posted.
Appreciate the info. We review all YPP applications carefully. If you weren’t accepted into YPP at this time, we recommend making changes to your content according to the resources & links provided in your Monetization page and reapply after 30 days.