Unable to cancel landline contract

Hi im in serious need of help, my mother has been without a telkom landline for over a year and ahe is still being charged for this service. We have cancelled the service online twice, she has been in to the N1 city branch multiple times and yet the money still gets deducted every month. She went as far as putting a block on the debit order then she was handed over! And she was liable for penalties. What does it take to cancel with you people!!!! Can someone please contact me to sort this problem out. I would like to talk to someone on my mothers behalf. Her ID number is ********** 105087. Please call me on **********