We'd like to know more. Visit here and send us the screenshot of the page that you see: https://www.youtube.com/features > Monetization. This would help us look into the issue better.
Also, the review team didn't reach a clear decision during the initial review process, so we’re putting extra effort in reviewing your channel multiple times before making a final decision. We're on track to send out these finial decisions by early next year! (2/2)