At the time of filing in the court any account, a certified copy of the account and a signed duplicate of each certificate filed with the court shall be sent by the guardian to the office of the veterans administration having jurisdiction over the area in which the court is located. A signed duplicate, or a certified copy of any petition, motion or other pleading, pertaining to an account, or to any matter other than an account, and which is filed in the guardianship proceedings or in any proceeding for the purpose of removing the disability of minority or mental incapacity, shall be furnished by the person filing the same to the proper office of the veterans administration. Unless a hearing be waived in writing by the attorney of the veterans administration, and by all other persons, if any, entitled to notice, the court shall fix a time and place for the hearing on the account, petition, motion or other pleading not less than fifteen (15) days nor more than sixty (60) days from the date same is filed, unless a different available date be stipulated in writing. Unless waived in writing, written notice of the time and place of hearing shall be given to the veterans administration office concerned, the guardian and any others entitled to notice, not less than fifteen (15) days prior to the date fixed for the hearing. The notice may be given by mail in which event it shall be deposited in the mail not less than fifteen (15) days prior to the hearing date. The court, or clerk of court, shall mail to the veterans administration office a copy of each order entered in any guardianship proceeding in which the administrator is an interested party.