GC Services - Collection Agency GC Services is harassing my neighbors Houston, Texas

Yesterday I was approached by a neighbor who received a call
from a man named Larry representing GC Services.  Apparently this man
has been calling my neighbors and divulging personal information in an
attempt to collect on a debt that I have been disputing for fifteen
years.  He threatened my neighbor saying that if she didn't provide
information about me to him that he would have the police come and
arrest her for obstructing a collection attempt.  He also provided her
with personal information about me such as my social security number
and last known residences on the East Coast.  My neighbor saw threw his
empty threats immediately because she had worked for the police
department in the fraud unit before becoming disabled due to an
accident.  I have talked to this Larry personally and he denies that
his company employed