AFRIHOST a tech will be assigned - NEVER!

My Fiber line was very unstable, after talking to Afrihost support the support agent asked for my ONT device serial number to try and stabalise the connection. After the restart of the ONT device like requested by the support agent my ONT device had no connection. They requested Openserve take a look. Openserve then established that the ONT device settings must have been lost when the support agent tried to stabilize the connection and that a technician was needed on site to sort it out. Initially Afrihost said they have 72 hours to sort it out. After 72hours a tech was assigned but from the wrong province and thus said he cannot help me. It's now been 144 hours and still no tech or connection and worse the status is still the same "A tech will be assigned". I then requested they release the line for me to see if another ISP can get me connected, they responded with no I need to give a months notice. WHY MUST I GIVE NOTICE YET THEY CAN JUST NOT PROVIDE THE SERVICE AND KEEP THE LINE??