Canceling Vodacom Contracts!

I have never struggled more in my life like I have with Vodacom. I have so much to complain about but now I tried to cancel my account with Vodacom and I asked the lady on the 9th of August 2021 over the phone to please send me an email of how much I should pay to close my account. On the 19th of August 2021 I went instore at Vodacom Horison to pay the full amount. The cashier gave me a paper to fill in and told me to email it to the cancelations department. So I did do that the same day and I circled no when they asked me if I wanted to make my number a prepaid number . I got an email the 19th of August the afternoon that said I am now on prepaid...and now I have to pay once again R3572... i phoned them again and she told me it is the month of August payment!!! Why did they not put it in the cancelation invoice. Now suddenly it is an amount that is dated of the 1st of august and now it is called a cancelations fee.... At this point I asked to not be prepaid witch they completely ignored and after a few occations does this include all fees but yet now I have to pay R3572. I got no joy from the call centre and at this point in time I need somebody to assist me to help get Vodacom sorted. I don't want anything from Vodacom again!