Abusive relations terminated with ISP

I was in an abusive relationship since October 2024. My internet line would drop connection randomly & this will continue for a week on each month. The ISP washed their hands stating the issue is on the service provider side (vodacom), this went on until 1st week of July 2025 with no resolution. In April 2025 I had no internet for over week, reason given was power failure in our area. I got tired of this abusive relations & decided to part ways with the ISP. But to my surprise I was charged a cancellation fee after all the headaches I had & being forced to find alternative internet connection etc, whilst I was paying for a service (October 2***). I would like to request for a refund of the weeks I had all the connectivity issues since inception of the service.