33.4 Disputed Amounts
33.4.1 If the Authority disputes the Contractor's entitlement to any part of the amount claimed by the Contractor pursuant to clause 33.2 (Report and Invoice) in respect of any Payment Period the provisions of this clause 33.4 (Disputed Amounts) shall apply.
33.4.2 The Authority shall notify the Contractor in writing within [ten (10)] Business Days of receipt by the Authority of the relevant invoice and supporting report of that part of the amount (insofar as at the time of such notice the Authority is reasonably able to quantify it) which the Authority (acting in good faith) disputes (a Disputed Amount) and submit to the Contractor such supporting evidence as the Authority may have.
33.4.3 The Authority may withhold payment of any Disputed Amount pending agreement or determination of the Contractor's entitlement in relation to the Disputed Amount but shall pay on the due date any undisputed amounts.