When prompted to select a payment method, use your Discover® Card and enter promotional offer claim code AMZNDSVRCARD in the field provided on the order form.
Amazon.com Promotional Offer Terms and Conditions:
Each promotional offer ("Offer") has a unique claim code that can be used only once. Limit one Offer per household and one Offer per order. Offer is not valid with other offers. Offer must be redeemed at the Amazon.com Web site, http://www.amazon.com, toward the purchase of products listed in Amazon.com's online catalog sold by Amazon.com. Offer cannot be redeemed at Amazon.co.uk, Amazon.com.de, Amazon.com.fr, Amazon.com.jp, or any other Web site operated by Amazon.com, its affiliates, or any third party merchants.
Offer may not be used in conjunction with purchases through Amazon Marketplace, auctions, or zShops, or from any third parties. Offer's cash value is 1/10th of one cent. Offer is not for resale and not redeemable for cash. Offer cannot be used to pay for out-of-print titles, special-order-titles, or gift certificates. Offer cannot be applied to orders already placed with Amazon.com. If you return items purchased using an Offer, you will not receive a refund for the amount of the Offer. When you redeem an Offer, Amazon.com can tell you are part of a select group of Discover Card customers. Offer expires at 11:59 p.m. Pacific Time on Tuesday, July 31, 2001.