not fixing our business line

We reported a fault in our Telkom line on the 19th of febuary a friday. As we are a small business we are not open on sundays when the technician came out. We tried the whole day on monday to phone the call centre you have to wait a average of 20minutes if we are lucky enough to get a person on the line. Then they just tell you that the technician is to busy to come out. As we work on appointments through the number that is not working telkom is literally costing us money!!! The same problem on tuesday now the 22nd allready and apparently the call centre is not allowed to give you the managers number. What completely bad service.