Froglegs. I'm sure, given what you've written since, that my "anecdote" wasn't particularly helpful, but I've one final suggestion.
Now you've said which is your hospital, can I suggest you write an email to the head of obstetrics explaining your experience and where you are now?
I knew who she was because she put an end to my appalling labour/delivery experience, and I did a debrief with her some 18 months later because it was part of the reason I couldn't shake my PND. I also wrote to her 3 years later because I had concerns about my last pg. here in Oz. She was still so good about writing back fully and very helpful.
If you CAT me I'll give you her email.
She said she wants to know things like this (about terrible postnatal care), and it obvioiusly hasn't got any better since my experience 4 years ago. I'm sure if you want to find a way through b'fding or ff, she will be able to give you the right person to see at King's. There is also a brilliant therapist at King's who is there for antenatal care, and she saved me I think. She may well be able to point you in her direction if necessary.
I was going to send her the link to your thread, for info., but that wouldn't help you. This isn't something I've offered before, but you sound as if you've tried every damn person in the book.
Up to you. Just a suggestion.