Needs to be A specially marked carton of Great Northern Brewing Company beer.
The participating products are 24 x Super Crisp and Original bottles, and 30 x Super
Crisp and Original cans (subject to stocks remaining).
There are up to 2,500,000 prizes available, as follows:
12,500 x $50 BCF vouchers;
62,500 x $20 BCF vouchers;
2,425,000 x $10 BCF vouchers.
T and C's here https://secure.cubpromos.com.au/gnbcf20/conditions.pdf