Sorry to hear that Keith, my goodness what a nightmare you have had sorting things out.
I too had the problem with an account being in my fathers name when my mother died some years ago (he had died 6 years before her.) It eventualy got sorted out but it took a long time.
When I moved out of London a few years ago one of old neighbours was informed that I had died. He was so convinced it was true I had to invite him to my birthday party to see I was actually alive and well!
