You definitely wouldn't publish the game without FB approving you for live ads first.
In my experience developing the plugin, I filled in the application form on the portal. It asks for the urls to your apps on the request form.
I didn't fill them in, as naturally I was not doing this for an app. I completed the form and was contacted within a day after by a FB representative. They told me they could pre-approve live ads for me, so i could test.
I can't see any reason why they wouldn't do the same for you guys.
That being said, I'll try and get some links of interest, and more info when I'm back at my computer.
Thanks. I couldn't find the section which I can add in my app url.