Birthday card

Wait and see what happens. If it is sent on time and the card is gracious etc, why not just send back a simple text saying thank you very much or a quick 'phone call as you may with other people. If it is surrounded with negativity, i.e. late, horrible card, with cold message, just bin it and move on. Sounds as if you need to focus on your own interests and life. I had a very difficult aunt who brought great family misery and she fell out with everyone.

I think you're going to be lucky to receive a card, let alone any cash!

Indeed

You seem to have a lot of high emotions going on in your family. You posted telling us about your abusive husband.
You told us that you gave up drinking ( now 2 months ago) because you were drinking everyday.

Sounds sensible lol
We're no longer invited to family events/celebrations etc but I can live with that

Yes, accept with grace. Can you use it as an olive branch?

Yes and stop worrying about why people are or aren't asking about you. They sound like a very squabbling sort of family and I would consider myself well out of all that.

Of course you do. Whatever has happened in the past, let it go.
Send a little thank you note to show you are the bigger person and enjoy the cash.

Well you haven’t received the card or cash yet so I would wait and see.
It all sounds very petty.