Worst Internet Service Providers : Disappointed

I was so happy to be referred to Supersonic by a friend not knowing it was my biggest mistake. When they came to install, they setup a second hand Remote Node (RN) that the technician had removed from another client and it was used to setup my account. It's hardly 6months and the RN is faulty. No internet and I cannot work. I have been following up on this since I logged my call and I'm the only one doing follow-ups, the agents and technical keep just keep apologizing and making false promises. I'm working from home, I've had to buy data everyday just to stay connected and be able to work, the vendor has been said to be coming since Friday. No one has called me to assist with the issue just promises all day when I follow-up. I regret ever moving from Afrihost to this mess.