The address that this sends to Facebook is longer in use. I got the following reply:
"Thank you for contacting us.
We have made changes to the data access request contact form to improve your support experience and as a result will no longer be monitoring any requests sent to the email alias: email@example.com. If you have a question about accessing or downloading your personal data, please use our dedicated contact form:
Thanks, Privacy Operations "
Thank you for letting us know. Very disappointing to see this since the link only allows people who have a FB account to submit a request. A person without an account has no way to delete their data.
In any case, we have updated the email address for Facebook in our contact database. It should be working now.