Link constantly dropping/call closed w/o consent

More than two weeks ago I logged a call for a line move (***) and an appointment was made for Monday (6 Jul) in the afternoon. Monday morning the guys show up and say the line has been moved. I plug in my router and test and find that my 10MB line is running at 8MB. The technician says he's going to check at the exchange and then phone me back that afternoon. I don't hear from him again. Tuesday a guy from the central helpdesk in Pretoria phones and asks if he can close the call. I tell him he can't close the call since I'm still waiting for the technician to come back to me. Thursday I phone (30min before someone answers) and en quire about the call and the lady tells me that the call has been closed. I asked her to reopen the call and get the technician to come back to me. She says she can't reopen the call I have to talk to the technical department. I hold on another 20min and explain to the lady at the technical department. She says she can't do anything and I must log a call for my line being noisy and the adsl dropping constantly. So I log a call on Thursday (257CKWK090715) and ask her to escalate the call fro prompt service. It's now Saturday and I still no response