Vodacom harasses customer

Following a complaint about outrageous data bill received of 17 gigs claimed to be used at a cost of R15k, the attitude in engaging to resolve this matter has been absolutely unacceptable - ranging from patronising to bullying and harassment. With Vodacom's own system not even knowing they issued a credit note for part of the bill, my family and I am now each receiving at least 5 calls (auto recordings!) and 3 SMS's a day threatening our phones to be cut if payment is not made - and this for 2 weeks after the credit note was passed! Despite having been very patient in trying to get this matter resolved, and having engaged in several e-mail conversations, and being bul**** into accepting a discounted payment despite my complaint not being properly tended to - we are now still harassed by these auto phone calls - apparently now I owe R99 - this despite the fact that Vodacom issued it's own new debit order after reducing the bill through a credit note. It is shocking that Vodacom treats long-standing customers with such disregard and that their own internal systems do not even know what the other is doing, yet one should 'trust' that there is no system error in anomally data usage.