Okay just got this email from Krispy Kreme. Should be throughout Australia (Conditions don't mention any specific states).
Offer Validity: 1st of March - 31st of March.
Conditions:
Print the Gold Card that is attached. Purchase a dozen doughnuts at full price and you get 50% off all subsequent purchases from Krispy Kreme throughout the entire month of March.
The Gold Card has to be printed and presented when you purchase the first dozen doughnuts (which would be the normal price). Then you get a stamp and the receipt gets stapled to your Gold Card. Just keep the stamped Gold Card with the receipt.
Then you present the Gold Card with the stamp and receipt for all future purchases in March, 2010 and you get 50% off. Simple as that.
That's the important part of the conditions. Check the attached image for all conditions (mostly about the offer not redeemable for cash, something about not having more than 5 bottled-drinks per transaction and that sort of thing).
Yay! I win! Wow.. Krispy offers get posted pretty quickly on Ozbargain. I received the email like 2-3 minutes before I posted and within a minute from my post, 2 other guys posted as well.