Telkom - Bad Service

Had a business line installed at our business on Monday. Since Tuesday we have had no telephone line and no internet. We have been on the line with call centres for over 4 hours and all that gets done is we get referred from one department to another. Telkom has also said that they will send a technician to tend to the problem, yet 3 days later still no one has arrived to assist. The number is question is ********** 818