Not pitching to install my adsl line

I went into Telkom's Alberton branch and I have ordered 10mb uncapped adsl. They sent me a sms which stated that they will do the install on the 30th of September which I accepted, on the 30th of September I took a day's leave at work for the install when they sent another message to reschedule to the 2nd of October which I accepted and I also phoned the call center and the consultant confirmed the appointment. On the 1st of October I received yet another sms for another reschedule for the 6th of October. It is totally unacceptable as they make appointments and they do not commit to them as it is rescheduled all the time and probably by next week they will reschedule it again. The call center is also difficult to reach each time I tried to reach them I held on for 30min or more before the call was answered. The one call center operator Hapiness said she will phone me back in an hours time and I am still waiting for a response.