Vodacom blatantly adding "made up" charges to bill

I initially took out my Vodacom fibre in the beginning of Jan 2021. After more than a week of Vodacom struggling to capture my address correctly, I ended up calling the courier company myself and doing Vodacom’s job for them. A week after using this ********** service, I called Vodacom to cancel and was told by a service agent that he has found the problem and my line should be sorted. I then received a settlement letter from Vodacom on 10-02-2021 asking me to pay an amount of R1,740.64 and a message saying, “ Good Day Mr Padiaychee. I trust that you are well. We have received your request for cancellation of the fibre solution. Attached find the quote for the recovery cost, please sign and send it back to us in order for us to submit the cancellation and get the release sorted out for you as soon as possible. Please note there is a 1 calendar month notice for a cancellation as per our Terms and Conditions” I responded to this mail stating that the agent said my line should be fixed and I will keep the line. 3 months later, on 03-05-2021 I could not take the constant dropping of connection and I called and asked for my line to be cancelled. After speaking to more than 4 different agents, who all gave different stories(of which I have proof) I finally received the settlement letter which all of a sudden when up to R1,844.87! So after 3 months of paying for the worst Fibre service ever, Vodacom adds in additional costs that weren’t on the initial settlement letter that I received 3 months earlier. Does this make any sense?? Not a single person from Vodacom has bothered to communicate with me in any form. I have been with Vodacom for more than a decade and this feels like when someone ****s you and blocks your number after you pay them. I have even sent an enquiry to Vodafone, Vodacom’s parent company in the UK because Vodacom’s “service” is non-existent.