Unfair treatment for a pensioner

I would to lodge a complaint.

My mom's account has been closed for what reason we don't know

Last year we had an issue with it and it was resolved and we never ever skipped a payment ever since then, instead we pay extra. Last month she decided to pay double for October and November. Only to find out that they then went ahead and switched off her wifi.

She's been running to Telkom and calling telkom for the past for weeks. Yesterday I decided to go with her and we were told that they cancelled her wifi and it's owing an amount of R1500 to our surprise we don't know when the bill reached that amount and we have not skipped any payments

This is so frustrating and such a huge inconvenience as we have a matriculant who is currently writing her finalize and needs the wifi to study. My mom even worse she's a pensioner they busy taking her from pillar to post.

This is so unacceptable especially for a pensioner