Bad Service

On 11 December 2015, HiFi Corp had a special on the MASTERCHEF 57CM PROFESIONAL KETTLE BRAAI which was advertised for R499 online. So I decided to order this with the option to pay and collect in store (Stoneridge). I get a call from the person that handles online deals and was told that they didn't have any stock however when I put through the order, the order page reflected that Stoneridge had stock. Anyway I was further told that they will get the braai from the westgate branch but there will be a delay as their drive will be on leave and will only be able to get my order after the 16th of December. I said I was fine with that and was in no hurry at that time. Today(19-01-2016) I make an enquiry to the Stoneridge branch as to what has happened to my braai stand that I have Ordered. and much to my surprise I have been told that there is no more stock, in fact there' s no stock in the entire country. My question is, How can HiFi Corp run a special but have no stock? Must I the customer follow up on my orders? Does Hifi Corp feel they shouldn't give customer feedback? Was this another online mishap that everyone is trying to cover-up? Order number #***