how do u confirm if the code preorder code is used

[AridElf]

I have a new account didn't play on 1.0, and only registered on the Beta, and the date of my registration on the window you show above, has the date of my Beta, not the Early Access code i've got today, so i think that's not quite right. have you seen the link i've posted above? The main part is:
This is what you should see if you did it correctly. http://imgur.com/AoRN2FT
This is what you should see if you haven't done everything. http://i.imgur.com/38y8eYw.jpg?1

Your two URLs confirmed for me and my gf that her code worked after her browser died. She'll be getting her 3 days headstart it seems