Facebook & Instagram

I don't believe it's possible to get this app to work. I've followed countless instructions, followed videos, googled it, asked Insta and FB no matter what I do it still ends up with the status as "In review". I don't mind that it's probably something I've done wrong. What I do mind is there's nowhere to find out what's wrong and how to put it right! Where's the help? Step by step instructions? Useless.