Vodacom Wifi is a ****

So last year (early November 2022) I got a call from Vodacom. They offered me a 300mb wifi package for cheaper than what I pay for my current fibre line. According to them It would be 6 times faster than my fibre line. So i take it. A week later they delivered the router. When I tested it, it maxed out at 10mb. The process of contacting them to send it back took me 4 days. Eventually they said the contract is cancelled and they will sent a courier to pick up the router. Imagine my surprise when I found out yesterday that they are still running a debitorder on my account for it. I went to the nearest Vodacom shop. They refused to help me and gave me a number to call. After a long struggle with their automated call centre I finally managed to speak to a person. Unfortunately I couldn't hear her because the people in the backgroud made so much noise it sounded like she was standing in the middle of a riot. Vodacom is one of the most unprofessional and useless companies I ever deal with.