Bait/misleading Advertising

They made an advert of 3 hart pots + a pan going for R299 on their catalog and the sale ended on the 22nd January 2018, but however I went to several pick n' pays around Pretoria but non of the shops had them in stock until one cashier at The Tramshed yesterday(22nd January 2018) confirmed that they never had them in stock. Why do you advertise something that you can't avail for purchase?