no response

i got a call on Thursday 14/01/2016 at 08h00 person put phone down since my phone landline has got an engaged signal on it i have lock a fault with Telkom S.A. on their web sit i have phone quite a few times from my cellphone to find out what is happening the same story it will be given to the first available technician . it is now been 4 days nothing yet , the problem now arises this landline is my business phone and on all my adverti*****t . now i would want to know who is going to pay my loss of revnue