Afrihost / Vumatel recurring issue remains unresolved

Really frustrated with Afrihost & Vumatel. I had fibre line installed at the beginning of lockdown. 1st month of service was great. For the last 2 months my fibre line has been faulty every week for 2-3 days a week. Afrihost troubleshooting and nothing works. Then a call is logged with vumatel. The fault is then fixed and we "going strong" for s few days then boom "connected -no internet". And the cycle is repeated. I've requested for management to call me and they did but the problem still persists. I've requested for the line to be replaced and this has not been done. I'm out of options and highly frustrated. Afrihost supposed to be one of the best ISP's I'm yet to experience that. I can confirm they very good at debiting your bank account on time for a premium they dont necessarily deserve given the amount of downtime I experience throughout the month. Vumatel I'm not so sure of either.