Highly upset

I am writing to you on behalf of my mum who is 80 years old. She is having endless problems with her telkom phone, she and i had complained several times I also took her to telkom store still no joy. That's the only way of communication right now due to lockdown and no social gatherings my mum is also sick with chronic condition so we always keeping in contact with my parents. However this is frustrating when not getting any assistance from telkom.