Bad attitude = poor service

I have just called into the Cell c technical department (21/11/2017 at around 14h00) and spoke to Rose. I needed her to assist me to set my phone as a wifi hotspot. She was very curt in her interaction with me and did not listen to what I was trying to say as she was talking while I was trying to explain what I did not understand. I eventually told her that she sounds very irritated with me and that her behaviour is starting to irritate me. She did not apologise and try to understand me. Instead she sarcastically asked "I sound irritated?" to which I said yes. I told her that she is not listening to what I am asking and she spoke again while I was speaking. Then she just said "ok" and dropped the call. I must admit that I was shocked to receive such bad service from cellc as I call customer services often and have never been treated this way. I ask when I do not understand something and I expect to be assisted with patience especially since I have been a loyal customer for years now. I recently took out 2 more contracts but this kind of service where the consultant makes you feel like you are stupid, leaves a bad taste in my mouth.