(2) The term of the insurance shall not extend more than 15 days beyond the scheduled maturity date of the indebtedness except when extended without additional cost to the debtor.
(3) If the indebtedness is discharged because of renewal or refinancing prior to the scheduled maturity date, the insurance in force shall be terminated before any new insurance may be issued in connection with the renewed or refinanced indebtedness.
(4) In all cases of termination of the insurance prior to the scheduled maturity date of the indebtedness, a refund shall be paid or credited as provided in ORS 743.378. [Formerly 739.585 and then 743.576]