Bad service

I just took over my late mother's contract that she had with tracker and from the first call i received from them they consultant are just inpatient and just want to get everything done quick without me asking any questions, tried to call them and explain that they app on my cellphone is not working as it says no internet connection but both my wifi and data were on and everything is working on my phone expect their app, lady keep on saying i should refresh my phone as it's normally the network service provide problems not Tracker , refreshed 5 time and uninstalled and installed still the same problem she are was inpatient and put me on hold for long and she hanged up. Poor service i tell. Sinethemba Twala was the lady assisting me with the change of ownership and she gave me poor service as she wanted me to answer no or yes without me asking any questions , very inpatient too. Poor,,, poorer, poorest service i tell you. My reference number : CLI***