How can I contact the National Visa Center regarding my one year contact requirement?

If the priority date is not current on Chart A Dates of Final Action or Chart B Dates of Filing, the NVC should not be asking you to contact it once a year to keep the case.  There is no such obligation and NVC should further contact you when the date has been reached on Chart B Dates of Filing to submit Form DS-260 Application for Immigrant Visa and supporting documents. When the time comes, you can communicate with the NVC by email or by letter once a year to keep your case active. A simple request to keep the petition active for another year is sufficient. The best time to do so is probably within one month of the one-year deadline. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.