Profanity name calling

They left a message about a case but not a name about who they’re calling for. So I call back I ask who they were calling for  they ask me to verify my husbands SS number I said I wouldn’t they said then I don’t have to tell you anything. I said I do t know who you are. She called me a [***] and hung up on me! I called back to ask what it was about and why she acted the way she did she yelled at me and said “Don’t you be calling me at my office!!!” I said you called me a [***] she said yeah and you’re a [***] and so is .... hung up again!!! I reported the number to the FTC. Unbelievable