I would make changes to this note but I would think twice about sending something like this as it will just give this woman more ammo to use against you.
First two paragraphs are okay but would amend the 3rd and 4th ones to this short but pointed reply:-
We do not have your telephone number and there has been no communication of any form from yourself asking about the welfare of my daughter who is, after all, your grandchild.
Repeated invitations to social occasions like DD's birthday party have also been ignored and your absense has been noticed.