Having flown on Ops with the RAF as an Antipodean Cultural Attache (read exchange officer) I can offer the following views from each side of the divide:
1. What you (Pom) guys are (NOT) paid for going sausage-side is a disgrace....I got my $AU 200 per day every time I crossed the border and $125 per day in theatre where I didn't fly as per RAAF/ARA people deployed with our own elements. (Much to the disgust of my stick-monkey when I made "ker-ching" comments every time were crossed the border!)
However,
2. The UK MOD was decent enough to allow me access to all of the perks, albeit small, such as a Paradigm card and e-blueys etc. So at least they shared their good deals with their exchange officers unlike the tight-arsed US so it would seem from some comments above.
I really hope that you (Poms) get the financial recognition that you deserve because you curretly seem to be the only mob getting rogered by your Govt for putting your lives on the line.....
BZ & Good luck!