There are 2 ways to ban someone from your page.
How to ban someone from facebook page on mobile. On the left menu, select “people and other pages.”. In the bottom right of facebook, tap. This feature isn't available on the facebook lite app, but it is available on these devices.
Log in to the facebook account that has administrative control over a facebook page on your pc or mac. Access your facebook business page and click the “posts” button. Ban people using “people and other pages”.
There are 2 ways to ban someone from your page. Press on “settings” on the left of the screen. Here are the detailed steps with illustrated pictures.
Select a device to learn more about this feature. Click people and other pages. How to ban someone from a facebook page.
I will show you how to ban someone from your fb business page. There are two steps to this and they are very simple. Tap in the bottom right of facebook.
Go to the page in question. From their post on your page: Go to your admin panel.