This is an invitation only offer. See if you are eligible.
To receive your promotional discount you should see this during the checkout process:
Click on the button below to activate this promotion credit. Note that you will NOT receive the credit unless you click on this button.
Add $50 or more of eligible products sold and shipped by Amazon.com to your shopping cart.
Under "Choose a payment method," select your Membership Rewards eligible American Express Card and pay for at least a portion of your order with Membership Rewards points, then click "Use this payment method."
Up to $25 of savings will be reflected on the final order checkout page if the items in your order are eligible for the promotion credit.