Vodacom terrible service

I was connected to Vodacom Fibre on 1 Feb 19 (20Mbps download speed). On 3 Feb I called to complain as the speed was down to around 10Mbps. Nothing was done, then I called again on 4 Feb as the average download speed was now 7.5Mbps. The speed continued to be slow, then I called again on 8 Feb. The problem was then corrected. On the 22 Feb the Internet service was down. I called again and was told that it was to be elevated. I called again on the 23 Feb, still without internet access, to be told that a tech will contact me on Mon 25 Feb, as they only work office hours. Incredible this lack of service. The competition works 24/7. I consider that Vodacom did not fullfill their side of the contract obligations and therefore I am entitled to terminate the contract without being penalised in any way. Easy to advertise, more difficult to provide world class service.