Disgusting, rude, uncaring staff at Vodacom Newmarket

My mother got a new phone yesterday as her old phone still uses 2G technology. She is 86 years old and lives with me in my house. I went to Vodacom Newmarket to do a som swap. The two characters at the door were already rude when I walked in. The one was very busy playing with her phone. Eventually with if them s***led at me and were very unfriendly before I even told them what I needed. They insisted on my mother's proof of address. I tried to tell them she is 86 and lives with me. I pay the accounts. She is sitting in the car as she had mobility problems. I told them this and that they can go speak to her. They are not interested. They are more eager to deny her access to a cell phone service because, at her age, she does not have 101 accounts and because of security and financial reasons she has to live with me. These are two disgusting human beings without compassion or sense of perspective who want to deny and old woman her right to communicate with family or to contact someone in a ln emergency l.