Bebe, I'm sorry to hear that. I publish in ILLUMINATION frequently but haven't been using the groups as much lately. However, in the past, I have Facebook target stories and heard of other pubs getting targeted Here's what you do. You'll get the message and then have an option to question the flag. I don't recall the wording. It's been a while. You answer the question that the post doesn't violate terms or something and they post the article. They will send you a post apologizing but by that time you've lost a day and the exposure in the group. It will help when you post on your own page.
I don't know about a publication. This is awful.