eNC3 and eNC5Q Contact Information Note: If you received a Submission ID, your submission is complete and has been received by the Department. Phone Numbers For questions about the application, filing requirements, or penalties, call 1-877-252-3052 (toll-free). For questions about file specifications and other technical matters, call 1-877-308-9103. Select options 2, 1, and 2. Email You may submit general questions to eNC3@ncdor.gov. Please be sure to include a descriptive title in the subject line of your email so that we know who to direct your question to. If you need to contact the Department related to a submission, include the Submission ID in the subject of the email. Allow 3 to 5 business days for a response to your email. This email address is unsecure. Do not submit confidential tax information. If you have questions concerning your specific tax account, call one of the telephone numbers above.