It would seem that buy.com have pulled many of their coupons lately. What you have to do is find a working link be it at the various "deals" websites or other sites that have coupon links.
Hint: try dvdtalk.com "coupons" and you should find a working link. I'm assuming here since it did not that long ago.
Click on it and then you will come to a page that will ask you if you want to redeem it now. Hit that link and then it will come to a pre-checkout page with 30 bucks credited to your account provided you fill your cart with 150+ dollars worth of goods. There should be a link that says "continue shopping" or something like that - use any common sense link that will get you towards shopping at buy.com and that should be it.
Hope this helps.
Hint: try dvdtalk.com "coupons" and you should find a working link. I'm assuming here since it did not that long ago.
Click on it and then you will come to a page that will ask you if you want to redeem it now. Hit that link and then it will come to a pre-checkout page with 30 bucks credited to your account provided you fill your cart with 150+ dollars worth of goods. There should be a link that says "continue shopping" or something like that - use any common sense link that will get you towards shopping at buy.com and that should be it.
Hope this helps.