After your purchase at Buy.com you get an offer for a $10 coupon for which you just click yes and enter your email. Then 30 days later shopperdiscountsandrewards.com charges your credit card by using the information provided for your original purchase to Buy.com. Now you are getting $12/month subscription charges for a $10 coupon that had no indication it was a subscription!
This charge was canceled by simply calling the Shopper Discount number provided on your credit card statement and saying "I was not aware of what this was." I recommend also filing a complaint with Shopper Discount to say this is "deceptive and damages the internet."
The worst part is that Buy.com has an agreement to provide YOUR credit card information to Shopper Discount following your purchase at Buy.com.
Buy.com sells their customers out and it was tucked into those intentionally long lines of the purchase agreement. These are EVIL people.