Worst Service EVER

I honestly cannot understand how MTN is still in business! I have never in my entire life received such shocking service (or lack thereof). Not one single store EVER answers their phone, so you are forced to deal with MTN Direct telephonically. They lie to you, make you promises they cant keep, shove you from pillar to post. I have for the past 2 weeks been trying to upgrade my phone ( I have been a loyal customer for 20 years) - every day I call to find out whats happening - I get told, we will call you back. NOT ONCE - not even once has anyone bothered to call me back, I have to pick up the phone and call again. I still have no answers - I still have no phone. You lot should be absolutely ashamed of yourselves and you *********** team of employees.