Glitch*****Staples 15% Off Coupon

Here's a 15% off coupon from GeoQpons for Staples.  Expires 2/6/12

I ran into my first glitch with a GeoQpon tonight at Staples.  The coupon would not scan.  The manager was nice enough to pick up the phone and call their help desk.  The help desk told her that the coupon had already been used.  I had not used it myself.  They thought maybe it had to do with it being a 3rd party coupon.  Boo!!