Rude, un-informed staff & inefficient service

My daughter was due for an upgrade on her phone - for over a week the staff at N1 City messed her around. Instead of telling her on the first day what exactly would be required, every day for over a week they requested different things. She drove to the shop every day, sometimes twice a day (because they never answer their phone) only to be told that they needed another copy of a different page of the identity book. Eventually she got the new phone. She was aware that the contract had changed but was never explained all the details of the new contract - she wasn't worried about free minutes and such but she did tell them she wanted a whatsapp bundle on the phone. When she ran out of data she went in-store to inquire about the bundle. The staff were so rude, practically shouting at her saying they explained everything the first time she was there, she is adamant that they did not - being a student doing her Masters in Law she is quite aware of what is told to her. They did not explain the contract details nor the fact that she could not have a bundle for 3 months - she would not have taken the upgrade if that had been explained. Because my daughter is small and looks very young they felt they could intimidate her by being dismissive of her. Not only did the staff member she initially deal with berate her but another staff member joined in the shouting - instead of trying to assist her they told her to bring the phone back and they would cancel the upgrade - basically telling her to get lost (not in a polite way). My daughter was absolutely devastated that anybody in the service industry would treat her like that. This is not how you treat customers. This happened this morning - I have been trying to contact Cell C on any number on their website only to get automated voices selling me their services - does nobody at Cell C understand Customer Service? If it were my business I would fire all of them - they have no clue what they are doing and do not know how to treat customers, its totally disgusting. I will probably get an automated response to this complaint as well.