So Dans' answer to my request to send some $14.88 Kentish to Sydney:
"Similarly, our prices may fluctuate between various stores depending on the conditions of their individual sales environments. The best way to ensure you have the most accurate price shown on our website is to make sure you have selected your local store online. To do this, you can set your store in the top right hand corner of the website - above the search bar. Once you've done this, it will show the availability of each product you search for, and its price for purchase in your location. In the case of the Under Wraps McLaren Vale Cabernet Shiraz 2014, it is on clearance in the Brighton area, hence the lower price, as there is limited stock that our Victoria stores are trying to clear what stock they have left."
I think perhaps the chances of success are higher if you ring and get a nice person on the phone. Bit like price matching and how hard they apply the strict letter of the policy - all depends who you get!