Online **** for black friday deals and NO responses or stock

Decided to go online on Black Friday and purchase from Edgard Home Department store. Their system is live so you are told when items are in stock and when they are out of stock. Their deal on Black Friday for Home Bedroom & bathroom items was Buy 1 & Get 1 free. OR so I thought. A week later the items were delivered. Shocking as I did not only receive only part of my order but did not receive the "Get 1 free" items either. I contacted Edcon Group that advised me that "oh, they are out of stock, sorry madam". I said that this is not my fault and that I would NOT accept a credit, I want the stock items that I ordered as it was "in stock" as per their live system on their website. I don't see why I should now waste fuel and go and look for new items at an edgars store when delivery is free? Now I need to spend money because "oops they are out of stock", I refused. Lady said she would escalate it & phone me back. She phoned me back but I missed the call as she let it ring once. This week I enquired again, once again I was told that it would be escalated, but still no response or the stock I ordered. Unacceptable. Wont buy online from Edgars again!