Fibre problem

Strugling now for about 72 hours to get a technician out to look at what is wrong with our fibre connection. Call centre just keep saying they will send someone within 48 hours. But no one phones us back or come to look at what is wrong. We are not happy with their service. Yesterday when we phoned the lady said she will asign a technician. When we phoned this morning the call operator said no one was assigned yet and they will asign it to a technician. So the lady from last nigh did not asign it yet as she said she would.