Called for my son fm 214-483-1616, a Dallas or Carrollton TX #. Caller identified himself as David Lyons, a private courier for Gregg County (TX). Claimed he had documents for my son to sign, & will be at our address tomorrow between 12 and 2pm. Claimed he'd need 2 forms of id & a witness to sign the documents. Stated he would call first. Said we could call the document originators at 855, then changed it to 866 and the # for Sallie Maye. (That # w/an 866 area code is an invalid #.) Talked to Sallie Maye, they're clueless.