Disappointed MTN customer

I am a very disappointed and dissatisfied customer right now. I took up a contract on Saturday and since then my data is constantly unavailable, in JHB??? When I call people the call gets cut off. I called the customer service yesterday 03 July spoke to Ndivuyile who said he is refreshing his computer and will call me back and he was gone, never called back. I call back spoke to Dudu at 14h15 who transferred to Sive who told me my tower is Vereeniging not sure why and what's that got to do with anything and then told me on her side everything is fine, I rook a screenshot as she was putting me on hold to gonlook for her supervisor as my internet was gone and she kept saying on her side it shows I've got internet. Then she told me to fo to tye tire where I took my contract because my Sim is faulty and it's nit their fault by the way I was told. I'm at work 8 to 5 I work in the South when am I gonna get time to do that? I took up this contract for work I use my internet to navigate directions to go see clients, when I can't do that I can't do my job. This is soooo inconveniencing and when I said let me speak to your supervisor she told me jo he's now suddenly gone to a meeting that has no end time and my call was cut. Is this what customer service is? I was expecting a decent human being so say ok if you can't ho back to the west rand fo to your nearest store for help but no I guess I'm the inconvenience to them. I have just started this contract and I regret might as well have stayed on prepaid or gone to a different service provider. Advice to other considering a contract phone think twice before considering this service. I'm very disappointed.