My mother passed away, no will, a small amount of savings. Dealt with everything with no issues apart from EON.
It took a while to get a death certificate due to it being a sudden death and needing to go to a coroner's hearing. The day after I got the certificate I rang EON (it says on the website if you prefer to speak to someone ring, so I did only to get told "Oh, and you're only bothering to inform us now", and "Just do it by email". Not very nice.
Sent off the details, photo of the death cert etc, and got the response that they cannot deal with me unless I provide a copy of the will or probate (and sent me a link to apply for probate). There is no will, and, as per the link to the government website that EON sent, probate isn't required due to the size of the estate being under £30k. So I'm stuck.
Most people in this situation, who don't need probate, could probably do with the money refunded, as they have a funeral to pay for etc, so trying to force them to pay for probate seems cruel.
EON said they will not close the account until this is provided, and standing charges will still apply (house has changed hands, so that makes no sense).
I connected EON and asked about the situation the other way around. Someone has died and owned EON money. Funny thing, they don't require probate then, and will chase you for the money.
It seems to me this is all just a way to hang on to the money of people who have passed away.
Dealing with someone passing is a lot of work, and I've dealt with pretty much every other energy supplier previously in this situation and never had a problem.