OVERCHARGING and PATHETIC inefficient customer service from MTN.

So the ongoing upgrade disasters and overcharging continue. Again no-one can help and I receive sms's telling me my issues have been resolved despite there being resolution or even any conversation between me and the person closing the issues. The saga continues 1. ********** 114 did not receive its contracted airtime at the end of June (ref 1- ********** 2142). I received an sms saying its closed and resolved, but still not received the airtime and I was forced to load R100 on the phone at the beginning of July. Where also was the call from MTN to tell me it was resolved and what was done to rectify it??? Nothing!! 2. Ref 1- ********** 8436 for ********** 232 which is my 2 gig day/2gig night tablet deal for R199. And this contract was signed when there was also the double your data promo running, which I was led to believe I would get at no extra charge. They are now charging me R199 for my contract AND for an additional 2g recurring data at R249 WHICH I DID NOT ASK FOR OR AGREE TO!!!! So far I have been overcharged R750 and despite logging this at the beginning of July, have heard NOTHING from MTflippingN. MTN have a wonderful technical service, their mobile internet is most probably the most stable I have used, but the drama with incorrect billing have made me decide that once I have fulfilled my contractual obligation I am NEVER going to renew them.