First of all, whether it was or not a compensation event would depend on the wording of the instruction from the Project Manager and/or why it was instructed. E.g. if there was compensation event which has caused delay and the PM has instructed the quotation based on weekend working to minimise the delay.
Under clause 63.1 of both NEC3 and NEC4 ECC, there has to be a change in Defined Cost to the Contractor to change the Prices. So if the Contractor is paying out more to its people as a result, then 'Yes' the Prices would change.
Under clause 63.1 of both NEC3 and NEC4 ECC, there has to be a change in Defined Cost to the Contractor to change the Prices. So if the Contractor is paying out more to its people as a result, then 'Yes' the Prices would change.