"FINAL FANTASY® XIV and Amazon® are partnering to offer a unique opportunity for North American FINAL FANTASY XIV players! Qualifying orders of $19.99 or more from the video game category on Amazon.com will qualify you to receive an Amazon promotional code that will grant you six exclusive in-game items!"
https://www.ffxivredeem.com/

My question: What qualifies as a qualifying purchase? Does it have to be an Square Enix game purchase or can I order something else?

Thanks!