Telkom changes date of appointment, no answers

I made an appointment with Telkom to have a new line installed at my new house early in the month, and got confirmation via phonecall and SMS on the 11th and yesterday (29th) that the appointment is scheduled for 1/10/2015 (tomorrow). Today I get an SMS stating that my appointment has been moved to 13/01/2015. <br> <br> I immediately phoned the call centre to rectify the situation, but after 3 separate calls waiting on hold for over 30 minutes from my cellphone, not a single representative has answered. I have wasted time and money to try and sort it out to no avail.<br> <br> I had taken leave to be available for the appointment, which I now have to cancel as it is a complete waste of my time. <br> <br> What is the point of trying to book an appointment for this if Telkom is not even able to keep to their own schedule without so much as a phonecall to enquire or explain themselves.<br> <br> This is unacceptable.