26.9  Disputed Amounts

If either party, in good faith, disputes any amounts which are the subject of an invoice provided pursuant to clause 26.7, that party shall, as far as practicable, prior to the earliest of the date of the next Monthly Payment Meeting and the date being five (5) Business Days prior to the date such invoice becomes due and payable in accordance with clause 26.8, notify the other party:

(a)  of the amounts which are not in dispute which shall become due and payable in accordance with the provisions of clause 26.8; and

(b)  of the amounts which are in dispute (a Disputed Sum), providing reasonable details of the nature of each such Disputed Sum and such amounts shall not be payable until the relevant dispute has been resolved and become payable in accordance with the provisions of clause 26.10.