Fibre modem installation

I received a call from Telkom informing me that a technician would be coming to connect me to fibre line and installing a new modem that supported the fibre lines on 25th Sept. I had arranged to be home when they came to do the installation. Telkom technicians arrived at my home 2 days earlier, Wednesday 23rd much to my surprise saying that they were ahead of schedule. I was not home but received a phone call from them asking where I wanted them to install the abovementioned. I said wherever they found the best signal. The existing ADSL was installed downstairs in my entrance hall serving three storeys and working perfectly well. Their decision was to install the modem in my bedroom on the third floor. They assured me that the whole house would get coverage. Much to my disappointment only my bedroom gets full WiFi. The entrance hall, lounge and tv room get a weak signal so my DSTV is not able to connect.....which is one of my main reasons for having WiFi. The lower floor which is a granny flat has the same problem. My ADSL worked perfectly throughout the entire house. So I called TELKOM to explain that I was not satisfied and explained my predicament. They then informed me I would have to pay them R610.00 for them to move the modem. I rejected that. My reply was you have taken away a service that was working perfectly acceptably and replaced it with a service that is not serving me at all, adn that they had assured me my connection with the fibre installation would be superior to ADSL WHICH IS NOT THE CASE. My request was either send out your technicians to remedy the problem or reinstall ADSL WHICH was working perfectly well. So unlike them arriving 2 days earlier to install the fibre connection I am now without my long weekend entertainment DSTV as it was no priority to them to remedy what they had deprived me of. Needless to say I'm a super unhappy, furious client right now. Why so quick to install and yet not be bothered to sort out their inferior work? My understanding from Telkom is that they care about their customer satisfaction. Although their call centre maybe efficient without getting the required field service they are not much use to the consumer.