There is a new promotion to get a $5 credit on your American Express when you spend $5 (or more) on iTunes. This promotion is only for people that have an American Express card. To register for the deal, you need to login to AmericanExpress.com and enroll in the deal. The enrollment link will be located towards the bottom of the page near your statement.
Offer valid only for iTunes purchases; not valid for any other purchases of Apple products in-store or online. Offer valid only for purchases made with your enrolled Card. Please make sure that your enrolled Card is the payment method set for your iTunes account in order to redeem the offer. Enrollment is limited. Offer is non-transferable. Limit 1 statement credit per American Express online account. If you order an item during the offer period but it is not provided until after 4/30/14, it may not count towards determining whether your purchase qualifies for the offer. Statement credit will appear on your billing statement within 90 days after 4/30/14, provided that American Express receives information from Apple about your qualifying purchase. Note that American Express may not receive information about your qualifying purchase from Apple until all of the items from your qualifying purchase have been provided by Apple. Statement credit may be reversed if qualifying purchase is returned/cancelled. If American Express does not receive information that identifies your transaction as qualifying for the offer, you will not receive the stmt credit. For example, your transaction will not qualify if it is not made directly with Apple. In addition, in most cases, you will not receive the stmt credit if your transaction is made with an electronic wallet or through a 3rd party or if the merchant uses a mobile or wireless card reader to process it.