Block List Facebook
Step 1
Click Facebook's "Account Menu" drop-down menu, which is the downward-facing arrowhead beside Home, and also choose "Privacy Settings"
Step 2
Click the "Manage Blocking" connect to open your Facebook blacklist. This Page lists whatever you've blocked on Facebook, consisting of Users, applications as well as occasion, or app invites from particular individuals.
Step 3
Each area lists the obstructed people or applications. Click "Unblock" next to any type of access to remove the block for that individual or application. Facebook updates the setups automatically, so click "Facebook" or "Back to Privacy" when you're done to exit the Manage Blocking display.
Suggestion
From your Bussiness' Facebook Page Admin Panel, pick the "Edit Page" drop-down checklist and select "See Banned Users" for a checklist of Users you've Banned from your Page.