Any purchase made @ Coles should provide a docket with a unique barcode. Example https://ibb.co/41Ld1x7
Valid in NSW, ACT, South Australia and Queensland as per receipt. Also has:
Great Northern 6 pack bottles 330ml $13
Furphy Ale bottle or cans 375ml $13
Great deal being $30 a 10 pack @ BWS
Limit of one docket per day per customer. Valid until 5 May 2020.
That's about $12 more than what Great Northern is worth. Not a bargain.