Clueless and Arrogant Supercisor

GEPF Supervisor by the name of Edith has no regard of what customer service is about, I wonder what is her team learning from her.She is rude and arrogant, she does not want to listen yet she does not even know GEPF rules. After Tebogo referred me to her I was expecting someone who understands GEPF rules better but it was my worst experience.I had to quote the rule to her but she still displayed her arrogance and even hang up the phone on my ears because she could not answer my question.She is adding numbers and does not deserve to be there.She thinks because she is a supervisor she can speak with clients anyhow.She promised me that she will ask the back office to call me because she is not dealing with claims, todate no one has called.She is the one who is supposed to work at the back office, she cannot be at front office with that attitude, she is so *********** to tell me that I must go find the rule myself.Is that what she is getting paid for.I wonder what criteria was used to employ her.I repeat she does not deserve to be there, she has no respect for customers and she doesn't know her job.