Any refund including interest thereon, if any, received by the franchisee from its supplier related to increased rates paid by the franchisee subject to refund and applicable to natural gas purchased for resale within the city shall be passed on to presently served customers by an appropriate adjustment shown as a credit on subsequent bills during a period selected by the franchisee, not to exceed 12 months, or by a cash refund at the franchisee’s option, or by such other method as may be approved jointly by the franchisee and city.
(1976 Code, § 10-1003)