What should I do if I receive a message that EVUS enrollment was unsuccessful?

An unsuccessful enrollment may be due to an administrative error, such as failure to provide complete information on the EVUS form.  For assistance, please see the CBP informational website or call the EVUS Call Center at 00-1-202-325-0180. The Call Center is available 24 hours per day, 7 days per week, but is closed on U.S. federal holidays. The Call Center is staffed with Mandarin speakers. You may also contact the Call Center by email. The Call Center is available to answer questions travelers might have regarding EVUS, but all EVUS enrollments must be submitted online by the traveler or a third party.  U.S. Embassies and Consulates are not able to provide details about EVUS enrollments or resolve the issue that caused an unsuccessful enrollment.