NCO, formerly OSI. Collections.  Calling about a school loan I've never had.  They still keep calling.

OSI Collection Services, INC PO Box 550720 Jacksonville, FL 32255-0720

This is a number to OSI Collections.

No details....left Voicemail to call back at this number.  First few seconds were of a muffled sound of a different language.  Then accent sounded like a strained southern or Tennessee variety.  They new my first, middle int, and last name.  They quickly said I had 24 hours to call back at ext 4307.

destrubing