Weeks without ADSL / no response

My Telkom ADSL line went down on around the 6th of January. I called multiple times (eventually got a reference!), logged a complaint, tweeted Telkom, went via their website faults reporting service and simply get 'we are sorry for the inconvenience. Someone will contact you regarding the problem'. To date there has been no response (other than boiler plate responses to my tweets as mentioned above). The call center says the problem is being dealt with, but it is now almost 2 weeks with no ADSL, no contact and no progress updates. I don't know what else to do? What is the problem? Can it be resolved? There is no helpful communication or resolution. I am being billed for a service they are not providing and have no idea if, or when, it will be attended to. Just silence!