Telkom doesn't even deserve a single star for service - they ought to be sc**** as a network company!!!!

Bad service, haressment and *****elent demanding or deducting funds from one's account are some of my grievinces I have been suffering at the hands of this company, Telkom for the past year or so. I had a month-to month data contract with them for a while with an agreement that I can end it by simply stop paying or alert them one month in advance. This I did by first trying to do by phone canceling: which failed as they never phoned me baack or consultants would dropped the line when I call back. Then I went several times to the satalite kiosk at North Cape Mall in Kimberley where I origanally took it from; dealt with the consultant who had helped me since the start of month-to-month. Later I even went to Telkom's main branch located at Diamond Pavillion Mall Kimberley where to my surprise my details could not be traced on Telkom's system. Went back to that consultant who again sent emails to their so-called head office and like before promised me that i WILL BE CONTACTED BY TELKOM. THIS NEVER HAPPENED entil today but still I have to go to my bank everry month to reverse charges of data I am not using but they want payment. When I asked my bank to cancel the debit order, they could not because according them, I give permission for such and I didn't do such a thing. That I allowed it, yes because after the first couple of months of transfering the money and then suddenly it goes off by it self, I did not complain. My complaints started however when there was disruptions and slowlessness of the data service. This fruatrated me and I even went to complain at their kiosk. When nothing was done or improved, I started using MTN pre-paid data bundles. Soon I even remove the Telkom simcart from my phone and don't even know where it is anymore. Been using MTN for more than a year now and move on to Rain since a month ago - still the Telkom nightmare kept haunting me every single month - they have even painted me as a bad payer on the credit bureaus that I can't even apply for vehicle finance. I would like to be advice where or how can I take legal action against this company? For injustice, deformation and a lot of other sufferings, frustration, loss (petrol I drove to and from them), etc