I know only the voters know why they think it's bad
This is, unfortunately, the crux of it. I'm sorry that someone didn't leave a comment as to how it could be improved. I don't see much, if anything, wrong with the question.
The only thing that someone might take issue with (and again, I can't speak for the rationale of the voters) is that
I wonder if the admin of the page has to accept it so that the status can change to Delivered. Is that correct?
could potentially only be answerable by Facebook themselves, and therefore, this is inviting speculation about their internal policies and business logic.