An Option B contract has been awarded for the construction of a new road. The requirements for street lighting were not included in the Works Information. The project manager instructs a change to the Works Information to include the street lighting but does not notify a compensation event. The Employer who has budgetary constraints is now stating that as 10 weeks have passed by the Contractor is not entitled to a change in the Prices or Completion Date.

Is this correct and how should the Project Manager deal with this?