Vodacom milking frail /ill senior citizens of their money

I went to vodacom vangate to have my mother's month to month "contract" canceled as she is unable to do so due to having severe stroke and is unable to speak. Vodacom staff insisted that she has to call into the cancellations department to cancel i then proceeded to call the cancellations dept from inside the vodacom store so that the consultant could confirm that my mother was with me and was unable to speak to them herself. I was then told to get a doctor's note stating she is *********** and then told by th consultant that it might not get the contract canceled but it was worth the try. He proceeded to tell me that I needed to take her to canal walk to the walk in cut care baring in mind My mother is barely able to walk and isn't well. I had to take her out of the nursing home to take her to the mall when I was told that she needed to be present to cancel it herself. Her contract ended in 01/01/2021 already and they just keeping billing her every month even tho she isn't in a legally binding contract with them. I'm so freaken disgusted in their lack of empathy as my mother is super frustrated and just wants out of this **** situation.