If you are ineligible for the offer, you will see a notice that says “Unfortunately, you are not eligible for this offer.”This offer is only valid for Amazon members who did not redeem it previously and who are targeted for this offer.To qualify, you must enter the Promo Code 0915GCARDS in the Gift Cards & Promotional Codes box when you check out.You must purchase $50 or more worth of Amazon Gift Cards by September 30, 2015, to receive the $10 promotional code.The $10 promotional code will be emailed to you 2 days after your purchase, and it can be used toward future purchases for items sold by Amazon.com.