Some exclusions and must be purchased online, however maybe a useful deal for those who are travelling soon.
Edit: JR Duty Free operates from Darwin, Brisbane, and Canberra airports.
Terms & Conditions:
Available from 9am AEDT Thursday, 29 November 2018 until 9am AEDT Friday, 1 February 2019. Available for online purchases only in Australia at www.jrdutyfree.com.au. The 20% off applies to full priced Champagne, Cognac, Confectionery Food, Fashion Watches, Fragrances, Liquor, Luxury Watches, Skincare, Souvenirs, Travel Goods and Wine. Excludes Technology, Tobacco, Chanel, Clarins Double Serum Duo, Clarins Double Serum 50ml, Dior, La Prairie, Lancome Genifique Advanced Serum 100ml, Lancome Genifique Advanced Serum 50ml, Lancome Genifique Eye Light Pearl Advanced 20ml, Lancome Genifique Light Pearl Eye, Youth Activator Concentrate Duo and Four Pillars Christmas Gin 700ml. Items packaged as a twin or triple pack are classified as one item only. JR/Duty Free cannot guarantee the availability of stock during the offer period. Not available in conjunction with any other offer unless otherwise stated. Duty Free allowances apply. Not in conjunction with any staff or incentive program discounts excluding JR/Vantage. The offer cannot be redeemed against a prior purchase. Applicable refunds will only reflect the purchase price of the item as displayed on the receipt, rather than the original ticket price. JR/Duty Free reserves the right to change, amend or end a promotion or limit sale quantities at any time without notice.
"Some exclusions" aka anything worth buying.