Any weed or cleaning taxes, penalties or costs on them paid more than once or erroneously or illegally collected by reason of a clerical error, may by order of the council, be refunded by the city treasurer; provided, however, that no order of the city council to refund weed or cleaning taxes, penalties or costs shall be made except upon a verified claim therefor, filed within six months after making of the payment sought to be refunded, or in the case of a double assessment of such taxes, within two years after such payment. (Ord. 639 § 11, 2004; prior code § 24-18)