Worst service provider. lack of assistance

I have been without full fibre connectivity for 3 days. I've spent hours on the phone at a cost of almost R100 per day or more. I keep being told that my call has been escalated to Octotel. I've changed primary dns and secondary dns settings, rebooted, reset, and done Route This, as well as WinMTR yet nobody can help me. I get shunted from pillar to post. Nobody gives a straight answer. Octotel, says they don't see a problem on their side, but yet, my fibre connectivity drops after 5 minutes each time. This is impossible. Currently waiting for 35 minutes on the line for a support agent to answer the phone for the second time today. I've sent emails and get automated responses. I'm paying over R1000 per month for fibre and this is the absolute worst service I've ever experienced from anybody. Yet when you want to sign up, they have somone onsite immediately and are quick to get on the phone with you and sort things out. Without proper connectivity I can't work and lose income.