For Prime Day, Amazon is offering it’s Prime members a FREE $5 in Promotional Credit when you purchase a $25 in Amazon Gift Cards for a limited time. To get this deal, just hit the yellow Click to add the code to your account button or use the promo code: GCPRIME18, and add a qualifying gift card to your cart. This offer is valid till July 17, 2018 or while supplies last. Limit one Amazon.com promotional credit per Prime account. The $5 promotional credit will be applied to your account within two days after your qualifying Amazon.com Gift Card purchase is completed or, in the case of physical gift cards, shipped. The promotional credit is only valid towards qualifying items sold by Amazon.com and expires on September 2, 2018.