the quotient that is— (A) the amount of the payment made by the insurer to the insured, divided by (B) the quantity that is 1 minus the rate imposed by section 101. (c) Administrative Option The credit determined in accordance with subsection (b) shall be paid by the insurer to the insured and the insurer shall be entitled to the credit in lieu of the insured, except that the insurer may elect, in a form prescribed by the Secretary, to not pay the credit and require the insured to make application for the credit. In the event of such election, the insurer shall provide to the Secretary and the insured the name and tax identification number of the insurer and of the insured and indicate the proper amount of the credit. (d) Coordination With Respect to Exemption If taxable property or services purchased by an insurer on behalf of an insured are purchased free of tax by virtue of section 2(a)(8)(C), then the credit provided by this section shall not be available with respect to that purchase. (e) Insurance Contract For purposes of subsection (a), the term insurance contract shall include a life insurance contract, a health insurance contract, a property and casualty loss insurance contract, a general liability insurance contract, a marine insurance contract, a fire insurance contract, an accident insurance contract, a disability insurance contract, a long-term care insurance contract, and an insurance contract that provides a combination of these types of insurance. 207. Refunds (a) Registered Sellers If a registered seller files a monthly tax report with an overpayment, then, upon application by the registered seller in a form prescribed by the sales tax administering authority, the overpayment shown on the report shall be refunded to the registered seller within 60 days of receipt of said application. In the absence of such application, the overpayment may be carried forward, without interest, by the person entitled to the credit. (b) Other Persons If a person other than a registered seller has an overpayment for