I found this yesterday on the German forums. Yes it does work, as I just ordered mine using it. It is a discount of 15% from DJI if you order from their online store and use paypal, also only for the first 100 customers. I am not sure if this applies to Germany only as the advertisement is in German. If anyone wants to try, the code and link is below.
orde_mult_xmas_2014
http://www.dji.com/promotion/xmas_paypa ... 14campaign
orde_mult_xmas_2014
http://www.dji.com/promotion/xmas_paypa ... 14campaign