Telkom does not want to install my line.

Went to a Telkom store in Hatfield to apply for a business line on the 24 June, the lady said I will get a call the next day, I did not get it, went again on the 27 June, my application was not processed, the another lady processed it in front of me and I got an sms for installation for the 3 July, on the 3rd the technician did not come, I called the call center and I was told they are working on it, I went to Hatfield again on the 18 July, the lady said she doesn't know why the technician did not come, she gave another installation date of the 23 July, still the technician did not come, I called the call center and I was told that it takes 14 t0 21 days for installation, I went to Hatfield again and the lady said she will escalate the matter and she will call me, which she never dd. On the 3 August I got a call saying they are coming to install on the 8 August, I even got a confirmation sms, still they did not bother to come. My business is suffering without a landline, Companies that I do business with cannot pay me or process my invoices as my registration is not finalized without a landline. And I do not have a reason why they cannot make it to install a line.