Overcharged For A Product That Was Not Requested

On November 25th 2015 at 10:05 a dispute was logged at my local Telkom Branch(Secunda). The reason for the dispute was that when I moved residence, Telkom never switched my line back to my ISP(Mweb) and started charging me for a 10mbps line(which I never requested as that speed is not available in my area) This all happened November 2014. So for 12 months my account was going into arrears as the agreed upon debit amount was insufficient. My line has since been suspended. I have gone to the branch 3 times enquiring about my dispute. Logged complaints about my account and even logged A SECOND DISPUTE. It's now March 20 2015 so for 4 months Telkom has done nothing to contact me, no sms, no email, no letter... All they did was Cut my service for a 3rd time due to in issue I had no knowledge of for 12 months. The staff are ***********, prices through the roof and service ****ndous. But as soons as they want your money they harrass you constantly. My service has been suspended for a week now, as I'm still even unable to find out what the amount is on my god damn account. Telkom I hate you with every fiber of my being.