[20] Clause 47 is a provision that contains a procedure for resolution of disputes. It will be necessary to consider it again in due course; but for the moment it is enough to say that the applicants submit that it does not apply to or provide for resolution of the disputes about Abigroup's payment claims, or the alleged shortfalls in payments arising out of them, which led to its claims being made to charges under the Act. The applicants' submission is that the 4th paragraph of cl 42.1 does not confer, or even purport to confer, any right to dispute all components of or omissions from a payment certificate issued by the Contractor's Representative. All it does, it is said, is to provide that payment of a progress certificate shall not prejudice the right of either party to dispute under cl 47 whether the amount paid is properly due. The fact is, however, that, while the reference in 4th paragraph is concerned primarily to ensure that payment of a claim delivered and certified under cl 42.1 will not prejudice the right of either party to dispute under cl 47 whether the amount so paid is the amount properly due and payable, it does, in so providing, clearly recognise the existence of a right in the parties to submit a dispute about such a matter to resolution under cl 47. It is, in our view, really not possible to read or regard that paragraph in any other way.