No LTE service and horrible customer service

So after about 10 months of good LTE wifi signal, my signal went down to the point where I struggle to even open a web page. After getting in to contact with telkom and not getting any help telephonically, i upgraded my package and got a new router. My line is still horrible. I have been calling Telkom and chatting to the agents on the Telkom Chat page. The things they advise me to do does not work and after chatting to them and me trying everything, the agent puts me on hold for almost 20 minutes they put the phone down in my ear. Thus is just unacceptable and horrible service. I pay for a fast line but get this bad line speed and bad customer service.

Please advise your family and friends to rather get another internet service provider as Telkom is seriously the worst i have come across.