medicare specalists

I called medicare to find out information on what would be the best insurance supplement for my mother who is 77 and on medicare. The specialist was very slow and had wrong information on my mothers medicare records. It was a nightmare person. I had to explain basic information about my mothers medicare and insureance that this person should have known. At least the operator that answered the phone was a pleasent person . If not for the her i would not have even given the one stare rating.
Thank you for letting me state my comment .