Telkom's bad service

I've had an uncapped adsl contract with Telkom since last year. In March this year my internet disconnected roughly around 16/03/2018. I logged a call with Telkom on 20/03/2018 to report the fault. They informed me a technician would be sent out. I waited and followed up almost every 2 weeks and just got the same response. Roughly around 20/04/2018 I informed them that I'd be moving to another address on 25/04/2018, the person I spoke to said it's fine they'd move my line before the 25th. The 25th came and went and nothing happened. The Saturday following the 25th which I had moved, a technician called me to tell me they're at my old address to fix the faulty line that I reported mid March. I informed him that I moved and had requested them to move the line so there's no point for him to be at the old address. I asked him if he could proceed to move my line and he said I have to wait for the order to be issued by Telkom to do the move, he can't do it. I followed up again with Telkom after that, about atleast once every 2 weeks, till date and I still don't have any internet. They have nevertheless continued to bill me every month, the full contract amount, regardless of the fact that when you contact them they're holding tones brag about not charging you when you don't have service and regardless of the fact that I've contacted their accounts department numerous times aswell to query this and they just keep telling me that they will escalate this. I requested to speak to a manager the last time I called and was just told that the manager is not availible but they will get the manager to call me. I'm still waiting for that call. Surely this goes against the consumer protection act. You can't charge a client for 4months for a product or service which you aren't providing to them?