Vodacom Fibre overcharge

I signed up for the fibre contract in July 2022, in August 2022 I did not have access to the internet, I lad a complaint with hello peter, the consultant from hello peter advised that because I did not have access to the internet for the month of august I will not be billed, however I was billed. In December 2022 and January 2023 I was double billed ( charged R1200 respectively for both months. I contacted Vodacom to lay a complain for double charging and I was advised that it will be rectified, that did not happen. I June 2023 I laid another complaint that I was being charged R709 instead R599 as per the contract, I was advised it will be sorted out to to date It was not done. I have been waiting for Vodacom to sort this out, evidently Vodacom is not interest in sorting it out. I want to be refunded in full for all the times i was billed incorrectly whilst contracted for R599 p.m