Claims to be Jacob Schwarz of Haines and Associates. He is preparing a civil complaint, "attached to your name and SSN", for a client of his firm. He wants to give me the details of the complaint "before it is released," and I am to call this number ASAP.

Oh, really? How many people would have my SSN? And why would someone who wants to file a civil complaint have it prepared and filed by a firm that's all the way across the country?

I've found another complaint elsewhere by a guy who got exactly the same message, says it's spam.

Betcha it's a collection agency.