I thought this was the case too but were recently told very firmly by our MT PSI that it definitely couldn't be done any more? Our booked transport was revoked at the last minute as it wasn't deemed an official journey.
We ended up hiring a car from Alamo (in the Forces Discount Brochure) and the only itsy-bitsy problem was that even though the hire place was on the edge of the Congestion Charge zone, the cnuts didn't bother to explain Ken's Piracy Scheme to us. We both being out-of townies too...
Bottom line is we found out too late (past Midnight) and collected a Â£50 fine for non-payment. Alamo immediately paid it for us (thus waiving my right of appeal) and took the fine, plus a Â£25 "Admin Fee" from my credit card. All plus VAT of course. Not bad money for writing a cheque and printing off a standard letter.
I phoned and in the end wrote in to complain and got an apology plus half the Admin fee back as "compensation". i.e. it was a fekking expensive day out to help the Army publicity machine out! Next time they can provide a green cab or poke it.
Oh and if I was ever to need to hire a car in London again, I'm not sure I'd rush back to Alamo / National ...
The ability to use MT on a Repayment Basis has faded into obscurity. I don't know anyone in the MT world that would go anywhere near it. We spoke to the MOD Legal guys about it at an MT conference a few years ago - the insurance aspect of it was so grey it was deemed a bad thing.
Just a point if you do decide to bend the rules & use MT for personal use. If you get in an accident and you are not on official Duty, you are not insured. MOD will basically tell you to poke off and you'll be personally liable for damage & injury caused. Could be quite a large sum of money after a protracted court case for loss of earnings, mental anguish etc. That isn't really worth it.
Sticky - you gotta be mad to use a car in London - never mind hiring one!
I can see that some of you are aware of repayment (Purpose of Travel Code: 00).
Whilst it is still possible, what you have to bear in mind is:
A Insurance (very grey area)
B How would we recover the cash from you (nobody say 1680, you are boring me). Dodgy cash transactions are just what the Army needs, cheers for that (not)..
C With white fleet contracts, can you really see any of the companies involved being happy to do this?
PRI is a different matter, but the moral of the story is read the discount brouchure, or just trying showing you ID at a hire company for that cheeky discount you might get.