National Principal Group, LLC Debt Collection Complaint

National Principal Group, LLC Debt collection department,

Taking/threatening an illegal action Sued w/o proper notification of suit California

I do n't know who this person is. He calls shouting my name as loud as possible. Demands to know where I am. Wants to know when I will be home. Calls family members over and over again as many as - times in a day. Called my daughter in - -, Called my Son in law, called another daughter in Arizona and stated he has a case number. Calls me all day long but will not identify himself. Left this number with daughter in AZ.- case # -.