Thanks for the replies, AP3392 is how I'm trying to fight it at the moment but I have to try and get hold of the versions that were extant at that time ie 1997 and 2000. The version qouted there was written 2003 unfortunately otherwise it would be clear cut.
I didn't notice the supposed over issue because it was a common sense pay increase, I'd done 8 years as NCA therefore went on to the middle rate of Officers flying pay, they think I should have started again. And the same when I transferred to pilot 3 years later.
Haven't heard of PMs before??