I had the exact same issue in my old complex close to Lonehill. It was newly built and I was one of the first to move into the complex. When I saw the place, I asked a friend if he knows anyone in the area has Telkom ADSL, and he stated that other people in the complex that he knows has an ADSL line. When in fact it was the complex next door to me that had Telkom lines.
When I arrived and applied for ADSL, Telkom said the same thing, that there is no draw line and it's too long to reach from where the Telkom box is just outside the complex gates. Telkom said that the body corporate has to get an Telkom box installed on the premises.
When speaking to the body corporate, they said that had applied for Telkom to be install a year before they started building the complex, and Telkom have never come to the table to install Telkom lines in the unit.
The body corporate even sent out letters to everyone asking who in the complex was willing to apply for a Telkom line and only 14 out of the 60 residents responded and said they would apply. Telkom needed at least 70% of the residents (over 40 people) to apply for Telkom lines before they would even consider installing a Telkom box in the complex. After living in the complex for a year without ADSL and using my 3G modem, I decided to move out. The complex still does not have Telkom lines. Telkom @$$h0les!