cancelled after 60 years

I have cancelled my Telkom account after 60 years. Two or three months ago I was contacted by Telkom. As they were discontinuing copper cable lines in my area they offered me a new smart phone instead of the old one. It would be connected wirelessly with the network. It worked spasmodically at first but hasn't worked now for at least a month. I have cancelled the phone and will manage without their slipshod service.