Can't believe this thread is still rumbling on.
I was in the NGA until they amalgamated with SOGAT and became the GPMU .... and so on.
UNITE have been quite helpful, but I haven't required them to fight my corner (so to speak). When I was made redundant (twice) the GPMU were very good...
They sent an email as it was out of hours. Taking it for granted a bit that receiver of email was at work that day and read it before 10am, but they have found a new job so end of story