...notice in writing of the time and place thereof shall be given by mail (unless waived in writing) to the office of the veterans' administration having jurisdiction over the area in which any such suit or any such proceeding is pending. (3) APPLICATION. Whenever, pursuant to any law of...

...filing in the court of any account, a certified copy thereof shall be by the guardian served by mail on the office of the veterans administration having jurisdiction over the area in which such court is located. A correct copy of any petition or other pleading pertaining to such account...