Im with Ian. For most retailers the most expensive part of their operation is the bit between the loading dock at the back of the shop and the till. You had a real person do a real task for you, not pick a bottle of a pallet/box/shelf.
As Australia slides inexorably into third world status we will soon need to import shop attendant labour on some special visa so we can afford the goods we want to buy. Until then suck it up and keep someone in a job.