I know you claim some "secret weapon", but it looks as though this complex story will boil down to your word against theirs. Not a strong position, so it might be time to walk away.
I see you are involved in another departure conflict. You appear to be singularly unlucky - but blessed with a very patient girlfriend (I'm assuming it's the same one....)
http://www.flyertalk.com/forum/other...l#post16191181