How can i replace a published form on my Facebook?

I published an existing form to our Facebook page but have not edited the form and want to replace the existing one.  How can I replace?

First, log in to Facebook with an Administrator account for that page.
Then, go to that page and click the tab where the form is.
Click the button at the top left (gear button). It will show a list of all your forms.
Click the desired form that you want to show.