My understanding is that the FI is not an 'Operational Theatre', therefore doesn't qualify. Pretty sure it came up here a couple of months ago.
Not quite sure why it (or a version of it) shouldn't apply from the POV of absence from the UK, but still paying taxes etc (one of the main gripes). You don't suppose it has anything to do with the lack of positive publicity it would produce for this bankrupt Govt do you?
STH