If any license shall be revoked, or the term or duration of any license decreased in time, the amount of the license tax shall be proportioned accordingly and the proportional part for the unexpired term repaid to the licensee within ten (10) days after written demand has been made, or at licensee's option credited on any license required of him. This section shall not apply to the payment of any litter abatement fee or NPDES program regulatory fees paid as a condition of issuance of a business license. (Ord. 2742, 2010)