This should not actually happen. When the PM implements a compensation event they should confirm what it is implemented at in terms of confirming the final change to Prices and/or any change to Completion Date.
It also exposes a slight weakness in NEC3 where it was unclear how a clause 61.2 proposed compensation event becomes implemented. This has been refined now in NEC4 with a whole new section 65 which clarifies how long the quote should be produced within, and the fact the PM has to state the date on which the instruction will be given by.
I suggest in your case here talk to each other. Get them to confirm what they are implementing it at, and then decide if you wish to take the matter further - which ultimately will be adjudication.
It also exposes a slight weakness in NEC3 where it was unclear how a clause 61.2 proposed compensation event becomes implemented. This has been refined now in NEC4 with a whole new section 65 which clarifies how long the quote should be produced within, and the fact the PM has to state the date on which the instruction will be given by.
I suggest in your case here talk to each other. Get them to confirm what they are implementing it at, and then decide if you wish to take the matter further - which ultimately will be adjudication.