Complaint poor service , no feedback

I am waiting for almost 2 months now to sort out Vumatel Fibre line service provider Telkom. If Telkom could not manage the clients expectations , why advertise and give me the option to change from Wi fi modem to Fibre if you can not deliver . I find myself having to continuously follow up , after 5 weeks we finally have at appointment with Vumatel to pull down fibre but Telkom is yet to deliver the Modem required . When I call Telkom , they escalate , there is no manager or senior to speak to . All Telkom does is keep escalating the exact same request for the last 2 weeks I am told that I will get feedback in 24 hours , this is the repeat feedback I keep getting everytime I call Telkom myself . I am still waiting for a call from Telkom. Telkom please pull out all call recordings and you will see why I am so frustrated