Mweb Horrific Performance 100 Mbps Fibre Plus Abysmal Customer Service

I have been an Mweb customer for the last 20 plus years. In that time I have had nothing but joy from my various internet solutions and their customer service. In fact, I have recommended them to many colleagues and friends. However, that has all changed when I upgraded to a 100/25 fibre connection about a year ago. A few months ago I noticed that my latency, jitter and download speeds were becoming unusable during peak hours. I reported the problem and I received the following reference number MWB***0. When I say unusable I mean my latency would spike by about 70 ms, my jitter would increase from 1ms to over 200 ms (leading to constant packet loss) and my download speeds would decrease from 98 Mbps to 4 Mbps! This has been happening every single evening during peak hours for months on end and with absolutely NO improvement. I've asked them to send a technician to my home to investigate and was warned that it would cost me money. When I confirmed in writing that I'll foot the bill I heard NOTHING from them. I have received a few random phone calls to state that my case is receiving attention but like I said there is absolutely NO improvement or evidence that something is being done for MONTHS now. To pay more than a R1000 per month for a 100 Mbps connection and only have 4 Mbps during peak hours plus the ********** latency and jitter spikes make this connection absolutely unusable when you actually want to use it - during peak hours. To top it all off in the past Mweb service staff use to work until 22h00 but now they are only available in the week until 20h00 and the problems always occur just past the hour when they are conveniently unavailable. I will never ever recommend Mweb to anyone else and I'm certainly looking for an alternative ISP to move my account within the next couple of weeks.