If it was used 3k times, there would be a popup saying that it was redeemed. You must be doing something wrong. The coupon is either not compatable with the xps2 or something like that. what kind of config do you want, ill try it and see if it works.
Ordered my Dell today. Could not get the coupon to work with the XPS but it would work with the I 9300. So I Got the 9300, The coupon is only good for "Inspiron's" I think that dell no longer considers the XPS a Inspiron notebook.