Paying for Vodacom for service they are failing to provide

On the 10th September 2021 my Vodacom Fibre order was approved and my Router was delivered on the 14 September with 100GB data. The contract mentioned there is free installation and uncapped wifi. I am currently unconnected I have been sending Vodacom emails I do not receive help. I noticed they have deducted their premiums at the beginning of December but I don't have access to wifi. I also received an invoice for installation but my contract says free installation. On the 6th December I called their call center they gave me a reference number but still, no one has assisted me. And when I am asking about the deduction the agent will only correct it once my wifi connection has been resolved. Please assist as I am spending money buying data but I am also paying premiums to Vodacom for services they are not rendering to me.