Rude telephone consultant

I just had a horrible experience with man from the Superfund department. The phone call was on 30 January 2019 at about 8:55. Unfortunately I don't have his name because he answered the phone with something that sounded like, "What?!". I had to tell him at one point, "Sir, you are being very rude." as he berated me for using the word "Superfund" in an inquiry at another department. I am very disappointed in the service I received from him and he definitely brought Old Mutual into disrepute.