Worst ISP Afrihost

Worst service I have ever had from a supplier for more than a month now they could not fix my internet they are selling my bandwidth in peak hours I pay for 100mb line up and down but on peak hours my net gets intermittent and I get maybe 20 to 30 Mbps down sometimes I only get 12 Mbps down worst internet I have ever had and then they are even more expensive than others and they say its because you get service from them where I have proven they don't give any...