All monthly license fees shall be due and payable monthly in advance, on or before the first day of each month, and shall become delinquent on the tenth day of the month for which payment is due. All charges for other services and supplies shall be due on the first day of the month following performance of the service or delivery of the supplies, and shall become delinquent on the tenth day thereafter. (Ord. 2006-059 § 1)