Bad service and dispicable practices

I am recently disabled. I requested about 9 months ago to cancel my account because I could not afford it as I now receive a monthly pension only. I was refunded for 1 month in July 2018 and even though my account was suspended, Telkom continued to debit my account every month and still is. I sent email after email and no one contacted me yet. I demanded that I should be refunded to no avail. Personally, I believe that they are taking advantage and basically *****ing money from a disabled person, which if true, would be disgusting.