GAME ADVERTISE WHAT THEY DONT HAVE !!!

For Game Stores birthday catalogue they sent out in newspapers May - June, they advertised cell 5GB Data Special for R99.00 rand. I phone Westville Pavilion Game Store – Durban and explained what I was looking for and was told by a lady they did not get stock in yet and they will contact me when it comes in. The lady took down my number. A week later I phone the store to find out if stock had arrived but still no stock received. Yesterday I went to Westville Pavilion Game Store and went to enquire. Firstly the lady who helped me was so rude and did not even address the problem, I was just told NO STOCK!!! A gentleman then explained to me that the whole of South Africa is waiting for stock and they do not know when stock will be available. So how can they advertise something if they don’t have the stock or know when stock will be arriving? I understand that you have to wait for the Supplier but that’s just bad service and advertising. This is only available till end of May / June, will I still be getting this on the deal advertised after expire date?