POOR SERVICE VUMATEL

I AM WORKING FROM HOME AND MY INTERNET HAS BEEN DOWN SINCE MONDAY AND I HAVE REPORTED IT TO AFRIHOST WHO NEVER LOGGED IT WITH VUMATEL. ARIHOST THEN LOGGED IT AND VUMATEL ARRIVED YESTERDAY AND THEY SAY IT IS NOT THEIR PROBLEM - PROBLEM IS AT AFRIHOST. WHEN CONTACT AFRIHOST THEY SAY IT IS NOT THEIR PROBLEM IT IS VUMATEL. THEY ARE BLAMING EACH OTHER AND NOT WILLING TO TAKE RESPONSIBILITY AND I AM PAYING FOR A SERVICE I AM NOT RECEIVING AND LOSING INCOME.