loosing business because of Telkom and there staf

I have started a business that requires me to use a telecommunication , i have asked Telkom to put a phone for me last month already and ever since the phone is not working, meaning phone is not ringing, i have brought 3 phones thinking maybe it is the phone that is faulty, to find that it is not the phone but Telkom, maybe the installation was incorrect or ... i do not know. I called the technical department on Monday 9/03/2015 and i was promised a technician with in 24 hours of the claim , on the 11/032015 i called again and spoke to a call center staff and said it will be placed as an emergency but still on the 13/03/2015 no technician was there , called spoke to Nogwazi and i Nomfundo who both of them were rude, have no customer services. the technician come on the 14/03/2014 but still could not find the fault on my phone, in the meanwhile i am loosing business and do not think Telkom will be paying my bills still. i am very disappointed in Telkom because until today my phone has no ringing tone.