It is not often that a story literally drops through the letter box, with almost all the names, dates and supporting documentation provided, but sometimes these things happen.
I've spent a few days reading the paperwork and feeling my jaw drop in utter disbelief.
Just a bit of cross-checking required with someone who had a similar situation and all will be revealed. This might take a bit of time, as they have a lot of documentation.
And I promise that your jaws will drop.
(No labels so as not to blow the surprise!)