Vodacom *****s my money - FAT BILL

I have never had any issues with vodacom until a week ago. I got continues phone calls from them saying my limit concerning my data and if I want to go over to another package. Usually when you move over they charge you for this and it is not always other service providers working with vodacom to get you to go over to another package. So I said no thank you. I got another call electronically from Vodacom saying I need to pay over R5000 for an outstanding bill. I know that I did make payment earlier in the month. So i phone vodacom and spoke to somebody. This was 08:00 in the morning. The lady who spoke to me was not helping and was yarning in my ear. She was really slow to respond too. She then said to me that the money that is outstanding is R9000. Then I was very furious and said that I will sort this out with an Vodacom branch. My bill went off on the before the first of the month and I saw that vodacom took R5400 of my account. I now have to pay penalty's with my other service providers because vodacom took all the money that was in my account! I am up to an point that I had it and really would like somebody to clear up this mess... or I will move to another service provider!