Vodacom pathetic service

We have been with vodacom for several years, what pathetic service the last couple of months... We were excited that Fibre was coming to our area. Little did we know how terrible vodacoms service would be. When Vumatel decided to put fibre in vodacoms sales agents came past the houses in November 2020. We signed vodacom for month to month 20mbps for R699. The sales agent advice they will only start charging once the fibre is active. Fibre was activated end of July 2021. We just got our 1st invoice for the fibre in September 2021 and our account is R9500 for fibre. They have been charging us since last year November. And ontop of that they are charging us R899 for a 20mbps line we signed for it to be R699.