Telkom cannot help new client if they don't have an existing Telkom telephone number

I am constructing a resedential unit in Moorreesburg Western Cape. I need to include infrastructure and pipes for telecommunications for future connection with Telkom having a pole on each side of the erven. I have been trying, without success, to contact Telkom for assistance, looking for a technician to come and assist me (like they did 7 months ago). The number I used last time no longer work and the Call Centre cannot help me unless I supply them with a Telkom phone number whereby they can contact me. I work on a construction site. There is no Telkom connection, hence they cannot help me unless I supply a Telkom number. I honestly do not understand how this company does business. There is no longer any contact details on the internet for local technical centres. Even Open Serve (new technical department name) has zero way of making contact. If anyone can help it would be appreciated.