No internet and no help

My internet contract was cancelled on 11 February without a word/order from my side and with my bill in fact overpaid due to an error in the charges that telkom deducted from my account (I have never missed a single payment date). I have attempted to restore this problem with daily calls to the 10210 number from telkom, but I just get put on hold for hours. Using their sms service, I finally reached a technician who came to check the line (which was fine) and then saw the actual problem (cancelled account) but he was unable to reach telkom himself (he was on hold for an hour) to sort this out. The technician came on a monday morning without any warning and expected me to leave my work (I am a doctor at a hospital) to open the door for him. When I finally got through again after being on hold for hours I was told the person that has to help me has gone home already and I need to call again tomorrow. I still do not have internet that I need desperately for my work.