How can I get unblocked from Messenger?
From Chats, tap on your profile picture in the top left. In the menu, tap on Privacy. Then tap on People > Blocked people. Tap on Unblock next to the name of the person you want to unblock.
How long does it take for Messenger to unblock you?
How long do you have to wait before you can unblock someone on Facebook? If you block someone and then unblock them, you need to wait 48 hours until you can friend them again.
Why has Messenger been locked?
According to Facebook's support page, they may temporarily block people when: Something the person posted or shared seems suspicious or abusive to Facebook's security systems. The person's messages or friend requests were marked unwelcome. The person did something that doesn't follow Facebook's Community Standards.