The same happened to me - it took me back to the "Buy honorbuddy" forum page, but in the address bar it had all my info and some stuff saying it was successful, so I think that's normal. My credit card was charged (got a notification for the amount being deducted).
HOWEVER, I did not receive a confirmation e-mail or my key - and the SendKeys says my e-mail address can't be found :/ Ordered last night, and have mailed
[email protected] so hopefully I'll hear something soon *waits anxiously*