BOR Rude and calling all around to verify my info Nationwide

Mr. Kendall has called my cell and my job being very rude and asking me to verify my information to voluntarily resolve a matter. I do not give personal information over the phone and did hang up on him, as I am thinking there is somthing fishy going on with my credit. I think my boss may have verified my info, as he called her without my knowledge. How embarrassing. there is no number on the called ID when he calls and when I google the number given, there is no information. He gives his name but does not identify where he is calling from. I am frustated, as I do have some debts and am a single mother who has no time for people to try to scam me out of what I really don't have.