Urgent help needed: running a political ad

I need to run a political ad this week. I filled out the authorization form and Facebook won't let me run the ad until I receive a letter to my address and enter the authorization number. The problem is that it's been a week, and I still haven't received a letter in the mail from Facebook. If we don't send the ads out this week, we've lost the window as election ballots go out this week. What can you do to help me with this?