it's hardly fair to accuse Big W staff of lying and intentionally selling to scalpers. It's a shop with stuff on the shelf. when I worked at coles I wouldn't have been able to tell you how many packets of green jello were on a pallet in the stockroom waiting to be stocked that night and I was a duty manager two nights a week, this is no different.

Staff at registers aren't going to stop people buying multiples of something unless they have been told there is a specific purchase limit. They are paid peanuts per hour and I can guarantee there is no customer service training that says you should shame the customer you think might be a scalper. it's a good way to lose your job.

stores that go to the trouble of having lists and calling people back are working above the standard system (as far as I know) and if it doesn't work because the person responsible wasn't in store the day an item arrived, it's hardly their fault. you should thank them the next time you see them for making the effort.