Bad customer service

Have been a client with Cell C since they started in South Africa. Did my upgrade 4 weeks ago ordered a device and started with the waiting game. First agent after a week informed me after I phoned to inquire as to why I have not received the device, that unfortunately due to a glitch they oversold the product and are having problems to get the unit in but are receiving on a daily basis I will be assisted within the week. 4 weeks later I am still waiting and the answer I get now is they are having problems getting the units in. No call back no assistance and then to really feel annoyed a client of mine had ordered the same product a week after me and had received hers within the required time. It seems that Cell C is just not bothered about their clients anymore rather just how much money they can make.