right I have looked into it for you and found out what's happened. basically it was if you preordered the phone last March when it first came out so that's why it won't let you. at top it says if you were ahead of the game and preorded it. so basically it's them being silly and they have left it up. look at what you could of won kinda thing!
yea it's as if it's a delayed notification because either way I'm pretty sure it would be too late and when I bought my there no mention of headphones however I paid a hell of alot less for it. keep that screen shot and present it to samsung I think on their chats there is the ability to share pictures like you have on there, maybe start a chat with them