How did you get a 650 rollover, they only let me rollover 500 of them!
Also I've just come here to say that I'm an idiot and booked 4 QF domestic flights in December + January (and not cheap despite being "red e-deals") and I forgot to use the $50 voucher on any of them. I wish they'd sent a reminder or had a popup when you login or just added it as credit to my account somehow instead.