Vodacom FTTH -Poor Communication and Handling of complaints.

I have had the worst experience with Vodacom FTTH. Firstly I signed up for the discounted Month to month option and I was told it would be R559 for the first 3 months and I was given an interim connection for "free". No installation was noted as my home is fibre ready. I received a bill from them earlier this month and I opposed as I was now being billed over R2000, instead of the R559 and a pro-rata for the month of June. I called their call center and logged a complaint via mail but to date they have not contacted me to explain why I am being charged installation and being charged for the interim. They have now deducted the money from my account with no explanation. It took them almost a month to have my connection up and running and now this nonsense with their billing, had I known that there was installation costs I would have opted for another service provider. The mere fact that they couldn't even respond to my email is just unacceptable.