We hate to break the news to you. Facebook doesn't have a team of customer service reps working the phone lines to help you with a niche, nuanced issue. Not being able to reach another human for help can be very frustrating, but Facebook has a comprehensive help center page with dozens of help post. Still, the Facebook support device can be tricky to navigate. Here's how to find the support you need using Facebook's Help Center. If the Help Center doesn't have the answer to your questions, we suggest several ways to log in to Facebook.
https://sites.google.com/view/facebook-representative