4 weeks and telkom still can't fix ADSL

I put in a order to upgrade my line to a 10mb line after consulting Telkom where by they confirmed 10mb will work in my area. After 2 weeks of no increase in speed I raised the issue with Telkom.When I raised the issue the technician informed me that I was using the wrong user-name. Which Telkom sms to me. I also arranged for a tech to come and investigate the line speed.1 week later a tech arrived after me escalating the fact that no tech as been out yet. Tech informed me that I can't get 10mb as I am to far from the exchange and that I need to phone the sales department to amend the order to 4mb. I informed them and a 1 week later the were still no increase in speed. After logging 2 more faults and multiple calls to Telkom. 2 weeks I received an email today stating that my line as been upgrade to 2mb. That is the speed the line as always been. After spending another hour on the call with the technical and sales team they informed that my line as definitely been upgrade to 4mb. Upon returning to Home I did a few more speed test at the line is still running at 1.5mb. Another 30 min call and still no resolution. Another call has been log for a tech to come out. with no ETA