delay in service

I started having connection problems with my router about 2 weeks back, it was then that we called the call centre and had spoken to a lady named mandy who had assisted us with our issue telling us that they will send a data technician out to us to install an aerial this was said to be taking a 72 hour turn around time and we were told that the technician would contact and she had given me a reference number. 1 week had passed and no one had contacted us. We had called through again on the next Friday and the agent had said that our issue was being escalated. The Monday following I was contacted by a guy named Kabelo who had said they would send a technician to me the same day but no one had arrived after me clearing my schedule waiting for them to arrive.Today 15th April I phoned telkom again and spoke to Mohau Modisa who had still given me the same information that a technician is going to come out but they don't know when. He refused to give me any contact details of someone in higher authority. I'm very dissapointed and highly upset to put it mildly at the service because I have lost out on so much money in 2 weeks of this problem as it is used for business.This is unacceptable