NO ADSL AFTER YOU ASSURED ME I CAN GET

After doing thorough research with Telkom, this includes phone calls to Telkom, they assured me that I need a Telkom telephone line and then I can get ADSL on my line. So I had the line installed, paid deposit. The two guys who installed it asked when they arrived if I was going to use it for ADSL and said I can just phone Telkom and they'll sort me out. After this finally happened I called in to have my ADSL activated only to be told that there is no exchange post available! Then trying to find out more I get put through to technical support and no one answers!! How am I supposed to get work done? My job is social media marketing, which is COMPLETELY DEPENDENT ON INTERNET!!! WHAT NOW TELKOM?!