Unclaimed Child Support When a child support check could not be delivered because the parent's address was not known, the support payment is reported to the Office of State Treasurer. These funds are "unclaimed" or "abandoned." Parents may claim the support owed to them by following the steps below: Search the listing of Unclaimed Child Support To claim support owed to you, complete the Request for Abandoned Funds form. You must sign the form in front of a Notary Public. Request for Abandoned Funds - English Request for Abandoned Funds - Hmong Request for Abandoned Funds - Spanish Mail the completed form to the address listed on the form.