You are right. It’s called Shop with Points at Amazon.com. Discover allows to use cash back instantly at Amazon.com checkout. To be able to do so, you simply need to sign in to your Amazon.com account, link your eligible Discover card to it, select Discover as a method of payment at checkout, and apply the cash back. The cards that are eligible for the benefit are Discover it® Cash Back, Discover More, Discover Open Road, Discover Motiva, Discover Miles, Discover it® chrome and Discover it® Miles. Cash back and miles are applicable to the online orders at Amazon.com only. Note that some items cannot be purchased using Shop with Points. For example, you cannot use this benefit to purchase digital goods, subscribe items, and some other items.