When I do an in-app purchase using the Sandbox, I will get the completion dialog and then it will pop-up an new login box. When I fill this second box with the same details as before it says...
iTunes account creation not allowed. This Apple ID cannot be used with the iTunes store at this time. Please try again later.
It does this every time I do an in-app purchase.
What does it mean?
Could it be related to this...