Rude female

I do understand the long wait to the call centre for the nursing council but I call on the 15 February 2018 at about 10.00 to about 11.00 am and a female picked up the call firstly without giving her name and when I gave her the id number to assist with my query she became very loud and I asked her why are you screaming she so rudely said I am not she cut the call on me after holding for her to answer that call 30 mins later was not good service. This is not the first time that this has happened. The service for a call centre is not in good standing. She should be trained on her attitude towards her clients. Very disappointed client .As a rating I would say she will get a 1 out of 10.