@
pscl I spoke with an Apple representative, and the up-to-date program went live prematurely a couple days ago. This hit the press and people filled in their information and got codes.
Now, on the official go-live date, those codes are being re-issued to people, e.g. everyone on this thread, and we're getting the error that its already been used.
The good news is Apple is aware of this issue and will be sending out new codes automatically to everyone affected. The bad news is it'll take between 24-48 hours.