自己紹介
On Facebook, click the down arrow icon in the upper right corner and select Settings. Secondly, on the left side of the settings page, click "Block". Although, find the "Block users" section and click the blue "Unblock" link next to the name of the person you want to unblock Facebook marketplace. Consequently, Click "Confirm" to officially unblock this person and you can visit our website.
https://www.email-contactsupport.com/blog/unblock-my-marketplace-on-facebook