Billed for a line a I do not own

Where to even start, I have so many complaints in so many departments it is unbelievable how this company has survived this long.<br> In short:<br> Cancelled my line in Oct 2015, moved to another house 30 Nov 2015.<br> Whoever moved in my old house ordered a Telkom line, the call centre agent/idiot whoever it was that helped the lady with signing up, DID NOT OPEN A NEW CONTRACT! Instead edited the current one attached to that phone line, he/she only changed the cell phone number and email address, the rest of the details INCLUDING the banking details remained as mine.<br> Every time I phone they say they can't do anything about the billing unless the line has been cancelled?!? So for the 3rd email to cancel this other person's line it finally happens on the 16th Jan 2016.<br> Now when I call they still refuse to help me and all they do is transfer me from department to department not knowing what to do. Now I've had enough! Not only are you guys billing me you are holding my deposit as well.<br>