Discover's Purchase Protection Doesn't Extend To Purchases With Cash-Back Rewards

One of the benefits of using a credit card for all of your purchases (and paying it off every moth, naturally) is the extension and sometimes expansion of a product’s original warranty. That’s what Cindy does, making purchases with her Discover card for protection and cash back. What she learned not long ago is that you can have the warranty extension, or use the balance in your cash back account, but you can’t do both. [More]