Shipley's No Frills

When an item is $3.50 if you buy 2 but there is only 1 on the shelf should I not get it at $3.50 I could not buy 2 if I wanted to.When I asked the cashier(the only name I have is Autum) who said there is nothing we can do about, try stocking the shelfs would be a solution.It wasn`t that I didn`t get the cheaper price,when I said I didn`t want the cookies at the higher price she turned on her attitude and started to slame the items down and as much a throw the bill at us.Custom service nill.