Terrible service MTN

I app**** online for a new telephone as well as a upgrade on my cellphone contract in the beginning of April. After sending through all the information re bank statements proof of residence etc my application was approved and it was communicated that I can expect delivery of my device. After more than a month I am yet to receive my device. Clearly MTN or the company they use to procure these devices are unable to give service. When I app**** online no mention was made that there are no devices available. On Friday I was contacted by an employee of Mondo telling me to hold on while he organize delivery for me by next week Tuesday. After waiting a very long time (no surprise) the call was dropped and the so called Mondo agent never even bothered to call me back. I am losing money since I need a new phone urgently but no help from MTN. When I lodge a complaint MTN say a operator will call me but it never happens.