Worst ISP in South Africa!!!

I have had enough of your service, I pay over R1000 per month for an internet service that is not worth the money. My internet speed during the day is 30mbps but this is obviously while I'm at work, so not a time I can enjoy it. Then from about 7pm it drops to between 0.1 mbps to 2mbps which is barely usable at times I can't even run the speed test. When I call I get the same answer reset your router. Then I spoke to Telkom representitive the other day and was told that Telkom is throttling me because I use too much internet? I am using a Capped LTE service, how is it even legal for you to throttle data I pay for every month!!! I have never heard of this in my life, no other ISP throttles capped data. On top of that I have had a issue I raised last year which was never resolved, So I have paid every month for a SIM card I can't use... I eventually gave up on that issue. I am at the point of taking legal action as I am paying a lot of money for a service I am getting no joy from. I am so disappointed that I turned down a better fibre deal because it was Telkom, I'd rather pay R800 more not to be with you...