DISGUSTING SERVICE PROVIDER

I canceled my contract on 16 August 2019 and my contract was due to end on 30 September 2019, so I gave vodacom enough notice. I then received an invoice stating I should pay around R477 as final payment but I've been paying around R377 and not only that but my contract was initially R310 but I understood the initial increase. When I called I was told that it's because I'm out of contract and the discount falls away which is hardly my problem because I am still within my contract period! I was told that my query would be resolved as it was an error and my last payment would be my contract price. I was also explained how billing works and that I pay monthly in advance. Which brings me to my next point. So it's now the 30th and I had over 200 voice minutes over the weekend, now I have 0 credits because iv changed to prepaid. Now seeing as we pay monthly in advance, I PAID for those minutes and they MUST be credited to my pre-paid account. I had to call and demand what is due to me. I spoke to a nice lady called Puleng and she advised me that my airtime/voice minutes would be sent to me in 7 working days. She did the best she could but Vodacom I should not have to wait 7 working days for something that I paid for. Your service/network is utterly disgusting and disappointing to say the least. I have been your customer for 5 years and prior to that I used your network under my mother's account for a further 5 years. I am going to leave your network once my bundles have been credited to me. No one deserves this kind of treatment, especially from a long term customer. You have lost a loyal customer.