Unbelievable incompetence

I booked an extra telephone point at Telkom's Woodlands branch on 31 July 2015. I was promised I would receive a call from their Technical department the same day to confirm the appointment for a particular day. Since that date I went back to the branch at least 5 times, spoke to the manager, Agnes and made at least 10 phone calls to Agnes's cell phone, as the branch land line does not work or is not answered. Agnes elevated my booking at least 4 times, she spoke to and e-mailed senior persons in Technical a number of times in my presence WITH NO RESPONSE WHATSOEVER. I can imagine how many customers are in the same position - perhaps hundreds or thousands! What a monopoly! What a state-owned enterprise! The poor customer is helpless. No complaints number. No helpline (that works).