I found this code works in the UK too (from the US reservations site): D004951. Gave me the same discount as D005927. My trip is later this month, so hopefully all will go well at the rental counter when the time comes.
Originally Posted by
Jenniferpa
For future reference, I got D005927 to work on a UK rental again. I think the problem was that, in the past I have always rented intermediate cars with this code (because for the longest time they were coming up only a couple of dollars more than sub-compacts). That seems to have changed, however. Because of this, I was attempting to rent a sub-compact, but that seems to be the problem: this code requires compact or above to work. Incidentally, none of the other current codes gave ANY discount in the UK: the rate stayed the same no matter what.