Telkom - No coverage in upmarket area Umhlanga Ridge Durban !!!

Umhlanga Ridge, Durban is one of (if not the most) upmarket business areas in KZN - and there are numerous calls centres in the area with thousands of employees - and guess what - there is no Telkom Coverage in the area. I have been here now nearly two weeks and my colleagues and I are so frustrated that our cellphones are not working. Really ridiculous being such a developed business area. You will lose customers to other networks if this is not sorted out immediately. Please can you look into this urgently !