I keep getting this in my cart.
take $10 OFF the purchase of $200 valid in ALL Stores! (Affiliate)
* You are not eligible for this coupon, or you have already used it. The coupon will be removed from your basket.
I've never even got to use it.
are you a new customer?
speaking of which - i found it it was a shipping address issue...my address got repeated twice on two different lines, and threw off paypal/buy.com as they will only ship to confirmed addresses