One month later and no final answer

At the start of February 2015 I was due for an upgrade on my current Telkom mobile contract. I went into the store, and was seen by a consultant. I was told that the phone that I requested was out of stock and that they may have to order. A few minutes later I was told that they do have one in their stock room and that I could have it, however their system was down and they were unable to process anything. I was told that it would be done by the afternoon without my presence and that I can just come in and fetch the phone, which suited me. I went in and it was still not done, being told to come back the next day. When I went back the next day I was told that they do not have the right SIM card for the phone and they were waiting for the order to come in. Again, I was patient and understanding and was promised I would receive a call when the SIM cards arrive. It is now almost a month and I haven't heard from them. My attempts to call the store with the number provided seems to go to a dead line. I refuse to believe that it takes this long for an upgrade as I've done it over the phone on another network and received the device to my door the very next day. This is unacceptable.