no, nothing shady, just spending a few bucks on facebook games. Some of the rebate cards or prepaid debits will take with my zip, some won't. It is mainly a time issue. I don't like having to call and register every $20 rebate card or PPD, expecially with GCM, whose online registration never works and I have to waste more time calling to register.....I can see why they don't want this to be public knowledge, because 3 out of 4 things needed for online processing are included on the card, but the info would be helpful to lazy online shoppers like me.