Lack of Service Costing Me Money!!

Our telephone line went down on the 22nd June 2015, 2 technicians have been the premises, one was denied access by Telkom to the box by Telkom - the reasons are beyond me - I am the client and if he needed access to fix the fault then why not allow him access. Since then we have had no further feedback or any other technician come through to fix the fault. This is costing me money!!! WE rely on the ADSL for work and communication purposes. I want to know when this will be fixed? No one can tell us what the issue is, and why the line is not working. I want an answer please and I want the line fixed. Telkom are very quick to invoice me in advance for the services YET I am not getting the service that I have ALREADY paid for! Fault Reference 162ATK220615