cant get proper form link for pasting in facebook

when I publish, I get a page with a link at the bottom. When I press copy link, I end up with a link to one of my images rather than a link to the form

To assist you better, could you please provide the URL of your Facebook page or sent us a screen shot of what exactly your problem is.

I would also recommend you view our users guide:

Adding a form to your Facebook page

We will await for your response.