No, it cannot be.
Clause 14.1 of both NEC3 and NEC4 clearly states that acceptance of a communication from the Contractor by the Project Manager or Supervisor does not change the Contractor's liability under the contract.
Clause 14.1 of both NEC3 and NEC4 clearly states that acceptance of a communication from the Contractor by the Project Manager or Supervisor does not change the Contractor's liability under the contract.