I am assuming this is NEC3 as you reference the 'Employer' being the one administrating the contract.
There is no express provision allowing the Employer to change their mind under the, BUT (before/rather than going to the dispute procedures):
- under 60.1(7), it is a compensation event if the Employer changes a decision which he has previously communicated to the Consultant. This implies that the Employer can change their mind and note that this compensation event can only put up the Prices.
- if both agree that there is an error, you could sign a supplementary agreement.
There is no express provision allowing the Employer to change their mind under the, BUT (before/rather than going to the dispute procedures):
- under 60.1(7), it is a compensation event if the Employer changes a decision which he has previously communicated to the Consultant. This implies that the Employer can change their mind and note that this compensation event can only put up the Prices.
- if both agree that there is an error, you could sign a supplementary agreement.