1 . Login to your facebook account

2. Go to this link www.facebook.com/about/messages/

3. Click on the “Request an Invitation ” button .(right bottom )

After that the button will change to ” You will receive and invite soon “ .

Note that Your email address will match your public username, Eg:

Profile: facebook.com/username

Email: username@facebook.com

If you don’t have a username you can go here www.facebook.com/username/ to get .