1.    An insurer may revise its schedules of premium rates from time to time and shall file the revised schedules with the commissioner. No insurer may issue any consumer credit insurance policy or group certificate for which the premium rate exceeds that determined by the schedules of the insurer as on file with the commissioner. The commissioner may adopt rules to assure that the premium rates are reasonable in relation to the benefits provided.

2.    Each individual policy or group certificate must provide for a refund in the event of termination of the insurance prior to the scheduled maturity date of the insurance and upon notice to the insurer. The refund of an amount paid by the debtor for insurance must be paid or credited promptly to the person entitled thereto; provided, however, that the commissioner shall prescribe a minimum refund and no refund which would be less than the minimum need be made. Refund formulas which an insurer desires to use must develop refunds that are at least as favorable to the debtor as refunds equal to the premium cost of scheduled benefits subsequent to the date of cancellation or termination, computed at the schedule of premium rates in effect on the date of issue. The formula to be used in computing the refund must be filed with and approved by the commissioner.

3.    If a creditor requires a debtor to make any payment for consumer credit insurance and an individual policy or group certificate of insurance is not issued, the creditor shall immediately give written notice to the debtor and shall promptly make an appropriate credit to the account.

4.    The amount charged to a debtor for any consumer credit insurance may not exceed the premiums charged by the insurer, as computed at the time the charge to the debtor is determined.

5.    This chapter does not authorize any payments for insurance prohibited under any law or rule governing credit transactions.