Facebook app on page

We made a game available as an app, but we can't get the game in the tab. At the filing stage, he reads:

"Our review team will use this page to validate your Page tab. This page must have the Page Tab app installed. Only the pages you specify in the dropdown will appear in the dropdown."

I am an administrator on three different pages, one was specifically created to test the tab, but it says there are no matching pages and the option is disabled even when a new page is created with this step.

Am I missing something or does anyone else know what I am doing wrong?