Vodacom forcing me to pay for fibre I did not use/purchase

I met a guy who sold Vodacom fibre and I gave them my address in 2021. They came, gave me an application and I kept on checking if I was okay to proceed, there was no answer-That was in 2022. I moved to another place while waiting for Wi-Fi assistance and response from Vodacom. The only thing that was done was to check if I can take home Wi-Fi. I never used, or it was never installed in the place I was staying in. Now recently I'm told that I have been listed, for a product I didn't buy or receive. The guy who did the application says he's no longer working there, and he's also surprised that how can I be charged if I did not receive the fibre or Wi-Fi, or sign any contract for that matter because I was in an application process. Vodacom handed me over. I did an affidavit to the company they sent and to Vodacom dispute section, even now, there is no resolution to this instead they are bullying me to pay for the home internet I never even received or signed a contract. At this stage, no one can assist beside the fact that my credit rating is being affected by this. I requested for an investigation because this is *****, but their investigation department just ignored me.