Anyone else having trouble buying pre-sale GABF tickets?

[TandemTails]

Trying to buy my presale GABF tickets with my AHA code and I keep getting an error that the code is invalid. I've copy/pasted and manually typed it (case sensitive too) and still get the error. Another buddy is having the same problem. Has anyone successfully been able to register?

 

[BrewnWKopperKat]

FWIW, I received an email from them with the subject "Presale Issue Resolved" at 12:03PM.