Disappointing service as a long standing Customer

Vodacom is currently running a special inside our Complex, Vredekloof Square, in Brackenfell by which they were advertising a 10/5Mb uncapped 24 month contract with free Installation and router for R 550 a month and then you get the first 3 months for FREE. My line was installed on the 25th of August 2018 and therefore I had the line / activated contract for 1 week. After installation Customer Service contacted me about the installation, and I escalated that we are having connection problems. Customer service advisor advised that someone will get back to me. After this I had contacted the call centre as I wasn't getting any feedback and advisor advised that she escalated this once more. It has been 2 weeks and nobody has gotten back to me. Secondly yesterday I received a invoice for R 637-55 from Vodacom payable end of October 2018. I sent this invoice to the Sales Consultant who sold me the contract (specifically assigned to the complex), Ebrahim Gasnola, and asked him to check into the invoice and to correct this, as firstly the Amount is incorrect as per Promotion R 550 per month (which I budgeted for) and secondly the first Invoice in my mind if I can do simple math can only be for maximum 9 days in November (debit order to go off on 1 October 2018). The promotion states 3 months FREE. 1 week in August 2018 + 1 month in September 2018 + 1 month October 2018 + 3 weeks in November 2018. In my mind they can only charge me a maximum of R 550 / 30 x 9 = R 165 payable upfront @ the end of October 2018.

Firstly I am disgusted by the service from the customer care department and secondly I am disgusted by the False advertising.

I do not recommend anyone to take the 24 month 10/5Mb contract from Vodacom, as the line firstly has connection issues, is slow, and most of the time the router simply does not want to connect to devices / and there is NO line.

Secondly the invoicing department / and advertising are not on the same page, and you are being overbilled therefore making it false advertising from Vodacom's Side.

I will not pay more than R 165 at the end of October, and if any debit orders goes off my account with regards to the Fibre contract, I will reverse it at the bank, and only pay what is due.