@Wotagain
My beloved DP passed on 25th January. I'm posting to say i hear you, completely and utterly. Your world is shattered and what remains of it can't even function efficiently to allow you to the things demanded of you in terms of red tape when you are gritting your teeth, trying to be polite, trying to be as efficient as you can, trying to be mindful of other people and their grief......it goes on and on and there is no way to escape. It's not grabbiness, it's trying to get across to an institution that their customers, at their most vulnerable, require effective administration processes that do not cause additional distress, and sometimes it takes a swift kick to the wallet for them to really take notice. You have been distressed and inconvenienced, due to shoddy processes.
During my "grief journey / process" I have encountered and been told of many such instances - given that many people die every day and processes are pretty standard, attention to detail should be top of the list.
I too have an interim death certificate. When it came through, it had an out of date address by 20 odd years on it. I had corrected it at the first hospital he was at, and the second. And speaking to the coroners office. Multiple times. Getting new certificates with the correct address on delayed release of my DP for burial. Not only that, but the address was incorrect online for the Tell Us Once thing. So I rang the coroners who were going to email me a new reference number. Embroiled with funeral arrangements I chased it up this week. I am still waiting.
I have been transferring direct debits from my DPs account before it gets sorted out. Utilities, that sort of thing. Mostly fine. Except our water supply company won't do it without seeing a death certificate. Which I have emailed to them. Standard response time according to the automatic reply - 10 days, but they are very busy so it might take longer. If I get any grief over lack of payment when his account goes out of action, they'll get the rough end of my tongue.
So, OP rage away. It is part if the grieving process for sure, especially when a loss is out of the blue and sends you reeling. No-one gets to tell anyone else how they "do grief", no-one gets to judge or set time limits or question whether your being rational or proportionate because love and grief have their own kind of madness that has to work itself out in it's own time. Rushing it, suppressing it, hiding it - these things store up problems of their own and can prolong the agony even more.
I send you love OP, and absolute solidarity 