Items Out of Stock and No delivery

On 31st January 2015, I placed an online order. As stated on the website, delivery is free and my order will be delivered within 6 working day. I have been contacting the online shop <br> numerous times from 11 February 2015, as to when I will receive my order. At times the call automatically go on to voicemail which I have indicated to the headoffice <br> which I also calLed numerous times to assist. Since then I was told that they are trying to source items from other branches as they do not have it in stock, but my delivery will be send asap. Up to date I have not received any delivery and I did another follow up. I was told that the manager will cobntact me. A call I never received....i contact the online store yesterday and was told that they could not find the blue kids tent<br> but have it in red And do not have any stock of the black sporks. My question is: upon placing the online order stock was available Of all the items ive purchased and all of a sudden there's none? This is bad customer service, no one informed me of items thats out of stock. If I did not call numerous times, I would not have known.