Get a one-time $20 statement credit by using your enrolled American Express Card to spend a minimum of $50+ in one or more transactions online only at express.google.com or via the Google Express mobile app by 12/28/2017
http://amexoffers.com
Use activated offer at Google Express with your American Express card to purchase the Nintendo Switch pro controller from target at $69.99 and receive a account credit of $20 eventually.
https://express.google.