What happens if you block an account?
When you block an account, they will not receive a notification indicating that you've blocked them. However, if they visit your profile, they will see a message informing them that they've been blocked.
How do I block an account?
Locate the profile or a post of the account you wish to block.
Tap or click the "More" icon.
Tap or click Block.
How do I unblock an account?
App:
Tap the Setting icon on the bottom navigation bar.
Tap Settings.
Tap Privacy.
Select the Blocked tab.
Locate the account you wish to unblock and select Blocked.
Web:
Click Settings.
Click Privacy.
Select the Blocked tab.
Locate the account you wish to unblock and select Blocked.