Whenever I try to type in my Xbox 1 beta code it says it is unable to buy this at the time. What do I do?
The Xbox One beta has gone completely open as of a couple hours ago! If I'm not mistaken, codes won't be able to work now. Simply go into the "demo" section on the marketplace (or you can just type it in) and you will be able to download it for free.
Be patient. Nothing really you can do at the current juncture. Keep checking back to see if it lets you download.
It's open beta now I don't think you need a code to get the beta. Go to your games & app tab on your dashboard.