Go to the follower’s profile
Click the three-dot menu
Select Remove this follower
Confirm the removal
To prevent them from following again, make your account private
If needed, block the user to stop them from viewing or following your account
Go to the follower’s profile
Click the three-dot menu
Select Remove this follower
Confirm the removal
To prevent them from following again, make your account private
If needed, block the user to stop them from viewing or following your account