$5 discount voucher for spending $30 or more in one transaction at Liquorland.
This will pair well with the $20 credit from AMEX for $50 spend, or handy for those without an American Express.
EDIT: Thanks to leeroys_dad, it is better to make two $30 transactions and claiming this twice, as the AMEX deal does not have to be all in one transaction. Therefore totalling $30 rebate on $60 spend.
This deal was listed on the Liquorland Facebook page here.