digusting service

I have taken out a 2year business contract with Telkom. my business is in city deep jhb. I've only been with Telkom for 11months now, and in the 11months the cables have been ****** 4 times already. don't tell me that im in a high risk area, because the whole of SA is high risk these days. every time a cable gets ****** I have to hang on for about an hour before I get through on the Telkom business line (10217) with no luck from that side, you ask for a manger to contact you back , and no managers respond to any calls. my problem is, you wait for a whole month for them to fix the problem, then they still debit you the full amount, with absolutely no service rendered from they side. Telkom, I am not a charity organisation that pays money for nothing. every time its 3weeks out of service for my business which means me loosing money. I have 13months left of my contract. and want to cancel you guys cause you suck. you can not penalise me cause you not holding up you're part of the contract. Again my lines are down, its been a week, I know its gona take 3weeks, and I do not want to pay you the full contract amount. oh and that R200.00 refund you gave me the last time, was a joke!!!