How to Send Email to Facebook Support
Step 1. Establish the contact's Facebook address. You could check if the call has sent you the address to use. Otherwise, you could browse to the individual's Facebook timeline and also locate their public username at the end of their LINK. For instance, for the LINK "http://facebook.com/user" the public username would be "user" This public username is the very first part of the Facebook email address, so the e-mail address would certainly be "user@facebook.com".
Action 2. Click on the "Compose" button on top of the left sidebar in your Gmail inbox to make up a new email.
Action 3. Type the Facebook e-mail address in the "To" field.
Step 4. Type the e-mail's topic in the subject line as usual and also type your email message in the main message text area.
Tip 5. Click the "Send" button below to send the message to the Facebook address. The message will get here in your contact's Facebook "Messages" box.