I need to let go so I can sleep

There was a funeral plan in place but his sister has said that her mother told her to take £2,000 out of the bank with the card to pay for the wake. Just a few sandwiches at the local pub - cynical, moi !!!

How has the funeral and all associated costs been paid for?

I have always thought along the “old fashioned”lines that a mother’s jewellery should go to her daughters so I expected nothing from my MIL’s estate.
I was delighted when my sisters in law gave me her own mother’s engagement ring and a long string of pearls, plus our 3DDs were each given a piece.
Leaving one’s affairs in order it so important isn’t it?

Similar thing happened when my MiL died grannyknot. My DH has two sisters, they divided out all of her jewellery and valuables among themselves and their children. My DD and DS saw none of it. I was rather upset at the time, but decided that it didn't do any good worrying about it. Eventually a silver sugar sifted came to my DD.

My first thought was for you to keep the money from the ISA, tit for tat.

Loobs I am certain that this is such a common problem that the planet must be buzzing with people cogitating about similar. For example, my sperm donor father died and had left his three children some money in his will, but we discovered that his (deeply religious, Christian brother) had emptied my father's bank account over the course of the week before he died, visiting ATMs every day whilst sitting sanctimoniously praying at his brother's bedside in between. My sister got very upset about that.

My MIL died last year, her and I were close. She has 5 daughters and I am married to her only son. Her daughters are determined that I shouldn't have any of her jewellery, offered me a "will let you know what's left" option. I got very upset about it for a day or two and then I remembered that bitterness is like "you drinking the poison and expecting the other person to be affected" or something like that.

Let it go.

Loobs, I can't suggest how to let go as I would feel the same as you.
Did the sister do more caring for your MIL and so feel more entitled? Although that is not right, it would be understandable.

Maybe his mum didn't feel well enough to sort things out in her last few years/months.
I think its a bit of a myth that terminally ill people have the energy to spend time putting their house in order before they slip peacefully away.
Just hope that the person emptying the account doesn't find happiness by spending someone else's money.

A similar situation although it was a house that I didn't get a share of. I refused to fight for it, then again at the funeral I simply signed the piece of paper saying I made no claim on the assets. DH accepted it grudgingly because it was my family but I know he thinks I should have fought for what was my right. I didn't because I don't like confrontation. I don't know if I was right but I like to think they have it on their conscience still. At least I can look at myself in the mirror and know that the person looking back is honest.