Using an NEC$4$ ECC $-$ The Project Manager has made its assessment of the final amount due and issued the payment certificate to the Contractor. The Contractor writes to the Project Manager stating it does not agree with the amount certified and that unless the Project Manager issues a revised certificate increasing the amount due by $150,000$ it will refer the matter to the tribunal.Which TWO of the following statements are correct?Select TWO optionsA If W$2$ applies, the Contractor must refer the dispute to the tribunal within four weeks of receiving the Project Manager's certificate of the final amount due.B If W$2$ applies, a Party does not refer any dispute under or in connection with the contract to the tribunal unless it has first been decided by the Adjudicator.C If W$1$ applies, a dispute arising from the Project Manager's payment certificate cannot be referred to the Senior Representatives.D If W$1$ applies, the Contractor should first refer the dispute to the Senior Representatives before referring the dispute to the Adjudicator.E A dispute arising from the assessment of the final amount due can only be referred to and decided by the tribunal.