Disgusting comments by call centre lady

I was contacted by a lady from your call centre this afternoon. She explained to me that as I was a valued customer, that my monthly subscription would be discounted and I would only be paying (amount). I explained to her that I didn't quite understand and wanted confirmation that what she meant was that my subscription (as I have 3) on one of my subscriptions would be coming down ... I was still going into my statement to obtain clarification when the lady asked me "do you understand was a discount is?" and that she was not trying to catch me in any way. I told her that I was a 52 year old woman and I didn't like the way she was speaking to me and she promptly put the phone down in my ear. I would like clarification that I am actually getting a discounted rate and would like someone to go and listen to the last few minutes of the recorded call to see how she was speaking to me. As a valued member of Cell C, I don't appreciate being spoken to this way. I would like to know the name of the lady that spoke to me and what is going to happen to her (i.e. is she going to get a disciplinary for the way she speaks to valued customers!!!!!)