Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first.
Just to confirm - they are rejecting the alterations but will accept the Will itself.
What do the alterations do?
What is the exact wording that is rejected?
And this granddaughter is not mentioned at all?
Will the grand daughter agree to honour the changes?
Then you can deal with the matter using a Deed of Variation signed by all the beneficiaries and the Executors "altering" the Will after probate has been granted
I hope that this is of assistance - please ask if you need further details