Telkom throttling between 6pm and 10pm

A few weeks ago I received a telling me that Telkom is offering me LTE to replace my ADSL due to cable theft. So I agreed because I have be on the short end of Telkom lines been ******. But I've been using it for about a week now and have found the speed to be slow. On ADSL I had a 10mb line and was promised that on LTE I would have 10mb speed as well. Now it's like this I come home put netflix on or YouTube and it would run with no issues or no lag. Now on LTE I'll be lucky if the page loads correctly the first time not even mentioning HD. I called the Telkom call center to ask why and I was told that network coverage effects speeds. However if this was actually the case then I'll experience it on my phone because its also on the Telkom network. Also this only happens between 6pm and 10pm and the call centre says that all I have to do is turn off my router and turn it back on again and that will fix it, it didn't fix anything. So now I'm stuck paying for service that I'm barely getting, Telkom please explain to me how this is fair? How can I be a loyal customer of yours when you don't give me what I'm paying for?