When I was searching for new Le Club Accorhotels promotions, I came up with this offer for 400 bonus points for joining the program by April 30 and having one stay by June 30, 2014.
Seems that this offer is targeted to Schiphol airport frequent users, but should be open for all.
Make sure that you use offer/promotion code E400NL0214PRIVIUM at the time of sign up.
When I tried signing up using this offer, I first received an error message that the offer would have expired, but it did go through the second time. It is very clear from the Schiphol’s website that this offer should be open until April 30.