Get a one-time $25 statement credit by using your enrolled Card to spend a minimum of $100+ in one or more transactions online at staples.com by 6/19/2016. The offer seems to be highly targeted and is not available via Twitter sync, so you need to log into your online account to add it manually. Use the multiple browser trick if you have more than one card in the same account.
E-gift cards are excluded, but you should be able to buy physical gift cards in order to trigger the statement credit. The terms say “Not valid for gift cards in bulk purchases”, which is a bit weird. I don’t know what they mean by bulk, so maybe you should just buy one $100 gift card. That sure can’t be considered “in bulk”.
Enrollment is limited so add it now to your cards, and figure out later what to buy. I only had the offer on one card, an Amex Delta.
Update: I purchased a $100 eBay gift card and received the confirmation email from Amex telling me to look out for a $25.00 statement credit.
Valid online only. Valid only on US website. Not valid in-store. If you order an item during the offer period but it is not provided until after 6/19/2016, it may not count towards determining whether the purchase qualifies for the offer. See merchant website for shipping policy. Some merchants may not ship to all areas. Not valid on purchases shipped outside of the US. Not valid for e-gift card purchases. Not valid for gift cards in bulk purchases. Offer not valid on online orders that are placed in-store through sales associate. Excludes Quill, Smilemaker, Staples Business Advantage, Staples 4 Government, Staples Toner Services, Staples Technology Solutions, Staples Promotional Products, Staples Print Solutions (same as Staples Easy Print), Copy and Printing Services, Staples Contract and Commercial, Staples App Center, Staples Industrial, Staples Book Rental, Staples Simplexity, Staples Share fund, and Coastwide Labs. Enrollment limited. Offer is non-transferable. Must add offer to Card and use same Card to redeem. Limit 1 statement credit(s) per American Express® online account. Statement credit will appear on your billing statement within 90 days after 6/19/2016, provided that American Express receives information from the merchant about your qualifying purchase. Note that American Express may not receive information about your qualifying purchase from merchant until all items from your qualifying purchase have been provided/shipped by merchant. 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 statement credit. For example, your transaction will not qualify if it is not made directly with the merchant. In addition, in most cases, you will not receive the statement credit if your transaction is made with an electronic wallet or through a third party or if the merchant uses a mobile or wireless card reader to process it. By adding an offer to a Card, you agree that American Express may send you communications about the offer. POID: CADM:0001