In the summer we had a disastrous holiday at my dad's house in France which we left early because of how him and his DW (my step-mum) were to us. Long story but he rents part of the house out to guests, he ignored the children for the whole holiday, criticised my parenting and then put money before family by telling me to sort my children's very normal bedtime tantrums out because family play second fiddle to paying guests and he didn't want people to complain (despite the fact I was also looking after the guests' children - for free - during the day). I posted about it here but must have put it in chat as I can't find it now. The consensus was that he was being a complete tosser and I was better off without him. RL friends also believe this.
Since then there has been no contact with either of them exception for a Gruffalo book sent to my DD for her birthday (just bunged into a brown envelope, they couldn't be arsed to wrap it) and a card for her which he didn't sign.
There was no acknowledgment of my birthday last month - not even a phone call.
So with Xmas looming should I:
a) not send a card
b) send a card
c) send a card with a book token for a nominal amount in
d) send a card with a copy of The Good Grandparent Guide or similar
e) send a normal present as if nothing has happened.