If your company has more than one Facebook Business page, don’t worry! You can merge them together, and the process is actually pretty painless. If you want to merge these rogue Facebook Business pages together to control your social media presence, follow these steps.
Before starting please reference the information on Facebook regarding merging Business pages: https://www.facebook.com/help/249601088403018/
Step 1: Log into your Facebook account where you manage one of your Business pages. Click on the Edit option.
Step 2: Select the page you want to keep at the top. Then select the other page(s) you want to merge with it.
Step 3: You will receive a confirmation message. Now it’s a waiting game for Facebook to review your request and hopefully approve it! This process may take a week.
That completes the process! Now go on your Facebook Business page and make sure all of your information is correct and you’re happy with the result. Happy marketing!
More help: Need to convert a Facebook Personal page to a Facebook Business page?
