61 Pa. Code § 401.43
(b) Any rebate due as the result of a timely filed claim submitted and signed by an eligible claimant who dies after the filing, but before the final payment of his claim will be payable to the spouse of the deceased or to the estate of the deceased or to the personal representative of the decedent’s estate upon presentation to the Department of a ‘‘short certificate’’ authorizing the personal representative to act in behalf of decedent’s estate, or will be payable in accordance with a decree of the Orphans’ Court directing distribution of decedent’s property, or will be payable to an individual who submits proof in the form of receipts and affidavit that: