Cancellation of line not done since December 2017

<p>I cancelled my Telkom line end of December. But the payment keeps going off. I understand that I had to pay for January but now they want their R199 for February and I don't have use of the line anymore. I want this line cancelled ASAP and I'm going to reverse the payment at my bank and I'll keep reversing the payment until the payment does not go through.</p>