Worst ISP

i had taken a DSL line out with Afrihost, and for the passed 2 weeks i have had stoppages in my internet, due to the incompetence of there staff and openserve when i had requested to speak to a manager it took 3 hours for him to answer i had made 3 consecutive calls to try and speak to a manager, the issue i had last week was finally resolved by the manager Thami, and the problem was that they had changed my ports, all was well until this week again and i am getting the same run around B/S from every consultant i chat to