Not showing up for installation appointment

I ordered a new residential ADSL/Voice line with Telkom. They called me on or around the 5th of October to confirm installation on the 7th (whole day appointment). I took of work to be available. <br> <br> Big surprise, no one showed up or called me.<br> <br> I called Telkom the next day (8 Oct), the operator said the would get back ASAP.<br> <br> Now its the 12th of October and still no response. <br> <br> My Installation number is ***