Okay I tend to rent in the Hague but D005591 always is a pretty sweet code. I used it recently in CPH. Vectra group car for a week for 150 quid.
I tried AMS for 8-12 June, Vectra car class. Without any codes 122 sterling but with "my"code 81 squid so that is an almost 35% discount
I have tried quite a few codes but this is the best one in Northern Europe.
Good Luck. Oh this code is safe to use.
PS let me know how you get on and more importantly if you find an even better code. Cheers