Lying to customers

I am a customer at the the Lyndhurst spar I have been collecting stickers for the store promotions when I wanted to get the pots which R999 I was told by the cashier that there was only 1 pot allocated to the store they have more than 100 customers a day and only have 1 pot. This is false advertising and I will never put my foot in that store again. This is the second time where I have collected stickers and was told that they don’t have stock of the products