Over the phone or in person. Claimants can call VA’s National Call Centers (800-827-1000), or tell a public contact representative in person at one of VA’s regional office. You may also appoint a recognized representative, such as a Veterans Service Organization (VSO), who can notify VA on your behalf using one of the above three methods.
https://www.benefits.va.gov/BENEFITS/factsheets/general/ITF.pdf
If you would like VA to obtain non-federal records,please review your decision notification letter for the appropriate authorization forms to complete and submit those forms to VA with this request form. 15. DO YOU WANT VA TO GET FEDERAL RECORDS?
https://www.vba.va.gov/pubs/forms/VBA-20-0995-ARE.pdf
If you use a Telecommunications Device for the Deaf (TDD), the Federal relay number is 711. VA forms are available at www.va.gov/vaforms. VA DATE STAMP DO NOT WRITE IN THIS SPACE 7. TELEPHONE NUMBER (Include Area Code) 6.
https://www.vba.va.gov/pubs/forms/VBA-20-0996-ARE.pdf
Use VA Form 20-0995 (if she previously applied for DIC benefits) otherwise use VA Form 21P-534EZ 24 Annie is the widow of a Veteran and receives DIC.
https://benefits.va.gov/BENEFITS/docs/bwn-101-briefing.pdf
pdf for "where to mail va form 20 0995".(Page 1 of about 15 results)