One month ago Facebook deleted millions of pages due to lot of spam and Un-published Facebook pages for doing heavy of S4S [Share for Share], L4L [Link for Link] and T4T [Tag 4 Tag].

How to Get your Facebook fan pages back?

You can restore your facebook fan page by sending official form to facebook .

Fill this form & Submit this, If your page is disabled or deleted due to spam or misusing Facebook TOU [Terms Of Use] https://www.facebook.com/help/contact.php?show_form=page_disabled

Fill this form & Submit this, If your page has any bugs while posting contents on page wall https://www.facebook.com/help/contact.php?show_form=pages_bug

Fill this form & Submit this, If your page is not displaying 
https://www.facebook.com/help/contact.php?show_form=page_not_displaying