1. Go to your Facebook page settings.
2. Check if there is a Page Verification button.

If there is no Page Verification button.
3. Go back to your Home page address.
4. Click About and change Edit your details. (Local Service & Public & Government Service).

5. Click Save.
6. And go back to the Facebook settings.

A new button will appear (Page Verification - Page is not verified)
7. Click Page Verification button and submit your document.

The document you must submit is document made by DTI.
8. After sending your document your page will response like.

Page is under review.
9. Just wait 3-5 days to verify the page.
Note: You must create your own document to verify your page. And I will not give a copy of document.
That's all! Thank you!
100% legit & 100% working <3
TumugonBurahin