Worst service ever experienced

My phone was ****** and so I went to Cell C to do get a new sim card and do a sim swap. I am heavily pregnant and had to stand in a queue for around 45min, as they do not offer their customers seating. Upon finally reaching my turn, Judy assisted me... I use the word \assisted"very loosely and she was completely uninterested. She said I would need to know the last 5 people's numbers I called using my cell phone. The phone was ******"