Disgusting service from all at Mtn

Hi there, I did mail Hellopeter on the 14th September, but cant seem to see the complaint in the reviews. Anyways Mtn as big as they are give terrible customer service........ I've been with Mtn for many years now and i am very disgusted with the service they rendering at this stage . I logged a call with them on the 31st August 2017 and up until today the complaint is still not sorted out. I was charged R769 via debit for a contract that is R349 a month. The reason that they keep bringing of is that i took the phone when they had a promotion and i would get 2G and R200 MTN to MTN calls free, all fair and good, but it expired last month and no one from MTN took the initiative to send a sms or even an email saying that I should cancel or if not it will be month to month charge. I still at that time was ok and thought that it could be sorted out quick and then there will be no harm done. I am now ****ed of with them as its the 18th September and i still not get my money back, firstly they debit you not knowing if you have the funds in your account or if you have enough. I don't keep extra in the account that i get debited from and had to ask my wife to do a deposit so that my other debits go off. I did inform the first call center person i spoke to and the reply is that they will pay if any other don"t go off..... I don't wont to be in bad books with other service providers if MTN cant do their jobs. The most irritating thing is that the service from the call center staff is pathetic, known of them could give me a straight answer. One guy by the name of Sipho really ****ed me off as he told me straight away that i will not get my money back. He also in a rude way asked me if I don't want an explanation from him. He did not know what he was talking about from the beginning of the call so how could he of helped me. i then asked to speak to the supervisor and he banged the phone down on me. it took him some time to come back and when he did he said that the supervisor will call me back. the name of the supervisor is Hlekata, and he never called me back. IS THIS THE SERVICE THAT WE AS CUSTOMERS SHOULD EXPECT FROM A SERVICE PROVIDER. I did send customer service a few mails already and i even logged a complaint on their website, but no ones called me as yet. I did receive an email that said they waiting for the banking department to sort out, but when they took the money out from my account they wasted no time. I would like for someone that knows their job like a manager or someone higher to give me a call to resolve this issue and i would like to tell them what happens behind the scenes if they don't already know it. NB: I got lots more to say about the service but I it will take forever to type. Thanks Preggie