I have a WiFi contract with Telkom I've been having signal problems with my WiFi

I have a WiFi contract with Telkom I've been having signal problems with my WiFi. I called the customer care on the 13/10/2021 explaining to the consultant that I am having signal problems and I have my WiFi speed decreased to 0.58 Mbps when I suppose to get full speed which is 10 Mbps. The consultant then upgraded my speed to 2.58 Mbps and has asked me too monitor it for an hour. An hour has passed I did call them again telling them that I'm still having the same problem with the WiFi and the WiFi speed is still low, the consultant then advised me to open up a case and he mentioned to me that I have to pay a call out fee he further mentioned if the problem is on their side I do not need to pay the fee but if it's on my side then I will have to pay for the call out fee. Upon hearing that I was very upset because I am paying every month for the WiFi contract without failure and I'm not getting full speed which on my side isn't fair to me and secondly I don't feel the need as to why I should pay for Telkom to come check what's wrong with the WiFi they should be giving their customers no issues with contacts whatsoever. I am utterly disappointed with the service I received from Telkom I don't think I would recommend Telkom to anyone.