National Application Center :: helpline
If you encountered an error or technical problem...
Please provide your full name or username, your telephone number or e-mail address, any details you remember about what you were entering or clicking on when the problem occurred, and the heading/title or www address of the screen you were working on.
U.S. toll-free hotline: (800) GO-TO-XAP
Outside the U.S.: (424) 750-3900