Vodacom fibre is a NO NO can’t be trusted

Vodacom fibre debited R2100 from my account in January for their service that is no longer in use. I called them and reported the matter and they kept on promising me that their technical department will do investigation and give me feedback in two weeks time. It’s more than two months now and they never resolved this issue instead they keep on sending statements saying that I owe them another R2170. This is *****. I requested them to send me a printout that shows when was their fibre last used in my house, they promised to do that and that was never done. They owe me R2170 that they debited in January 2024 for service that I did not use for quite some time. And I’m tired of explaining the same story to their different consultants including their manager who called me and promised to resolve the issue.