If you haven’t heard back yet, this means the team didn't reach a clear decision during the 1st review, we’ll put more effort/resources into the final decision. There’s no way to expedite this, we recommend reviewing YT Monetization Policies & more here: https://yt.be/help/YPP-review
Unfortunately, our team doesn't have specific timelines for individual channels. Bear with us as your channel make its way through the review process. Hopefully you don't have to wait too much longer for your update.