Telkom change terms of agreement

Beginning of 2015, Telkom phoned me with a promotion for a 10mb uncapped upgrade from my existing 4mb line, that I only have to pay around R970 per month, but have to sign for 24 months. I accepted. This month my connection was cut because my account is in arrears.<br> After a huge effort to find out what's going on, It turns out I am being billed R1200 per month as per regular 10mb uncapped subscription, and hence, been underpaying. I told the person that it wasn't what I agreed and was basically told that's to bad for me.<br> Obviously next I wanted to cancel my subscription as I feel Telkom breached the terms of our agreement and again was told, I will be held liable for the duration of the full contract.<br> At the moment I feel as if my hands are tied as I never recieved a contract as proof of what was agreed upon telephonically, and Telkom refuses to assist me, or even bother to check on their side with any other department or person to verify the matter.<br> <br> <br>