Payments required to be made under this Ordinance shall be made quarterly, within forty- five (45) days of the end of each quarter, at the City Treasurer's office or County Court Clerk's office, as the case may be. Any fee not paid when due shall bear interest at the rate of one and one-half percent (1 ½%) per month from the date due. The acceptance of any payment shall not be construed as an accord that the amount paid is the correct amount; nor shall such acceptance of payment be construed as a release of any claim City, County or Authority may have for additional sums payable by franchisee, nor a release of any other obligation of the franchisee. All amounts paid shall be subject to audit and recomputation by the Authority, provided, however, all audits of records used or useful in ascertaining franchise fees, conducted by or on behalf of the authority, are binding to the Authority.