A slightly confusing question/situation.
1) If the comments back from the PM are correct all be it late then these would seem to be a defect (something not in accordance with the Works Information) and you are obliged to correct a defect. Not sure what entitles you to notify a CE under 60.1(6). It didn't stop you at the time - you carried on anyway. I get that it would have been better had they communicated this (a lot) earlier - but if your details were not correct they need correcting.
2) Not sure what the relevance of the early warning is here or what difference it makes contractually. You can only notify an early warning for something you are aware could be an issue. I doubt at the time you knew it might be.
3) The PM only has to accept something that the Works Information or contract says they have to e.g. programme, design, subcontractor etc. Even then, their acceptance does not take away the liability for the Contractor to comply with design/Works Information.
So, unless their comments to correct is a change to the Works Information I see no reason why this would be a compensation event (but would agree it is very unhelpful/not in the spirit of the contract to be so late - but nothing contractually I see you can do about that).
1) If the comments back from the PM are correct all be it late then these would seem to be a defect (something not in accordance with the Works Information) and you are obliged to correct a defect. Not sure what entitles you to notify a CE under 60.1(6). It didn't stop you at the time - you carried on anyway. I get that it would have been better had they communicated this (a lot) earlier - but if your details were not correct they need correcting.
2) Not sure what the relevance of the early warning is here or what difference it makes contractually. You can only notify an early warning for something you are aware could be an issue. I doubt at the time you knew it might be.
3) The PM only has to accept something that the Works Information or contract says they have to e.g. programme, design, subcontractor etc. Even then, their acceptance does not take away the liability for the Contractor to comply with design/Works Information.
So, unless their comments to correct is a change to the Works Information I see no reason why this would be a compensation event (but would agree it is very unhelpful/not in the spirit of the contract to be so late - but nothing contractually I see you can do about that).