Worst service ever!

Worst service I have ever had in my entire life! Switched my father's phone off (after he paid his bill) and it's still not on a WEEK later!!! Tried to phone customer service 8 times and each time they transfer me someone puts the phone down!! I have spend over R300 airtime and still have not spoken to anyone to assist me. Consisering taking further legal steps and writing an article to the newspapers. This is nonsense!! My father is sickly and now cannot be reached on his mobile phone, what if something happens to him!!