If you've been waiting that long, your channel had a first review but we didn't come to a clear decision, so extra effort & resources are going into more reviews. Creator Studio doesn't show this, so it's confusing & looks like you haven't been reviewed. Hope you hear back soon!
While we can’t cover specifics, we’ve added much more detail & best practices to our ad-friendly guidelines: https://goo.gl/EnR41v . Hope it clarifies.