Usually when someone was being polite on the phone and saying what you wanted to hear, they did not mean it. I bet when they got off someone said, "what a male private part." At least that was what happened to me when the server at my school got my order wrong. She said some words of hate under her breath and I could hear them being said. To make this short, she does not have a job do to the other complaints made by students. In any case, they are insulting you. But, not much they can do about it due to you having phone records of the conversation on hand, which could get someone fired.