Hi,
I came across your job posting and am confident we could help you get removed from this facebook issue. You site has actually been blacklisted by facebook,though there is no certain guaranty of how immediate this will be but am confident facebook will re-consider you at the long run,but my major concern is have you done an history check on your domain and see what has been done with it in the past,is it scam safe,virus scanned,is it blacklisted by google too? These and many is what we have to consider before we begin the project. Love to hear from you as soon as possible,so as to discuss better. Thanks