They did not leave a message, but I did call them back but an answering service came on and said that it was a number in Texas from someone's office. However, they never called back. They called upon my home phone and cell phone on the same day around the same time.

left a message on my (unlisted) cell phone said her name was Stephanie looking for someone that I have never heard of before.  Asked if I could tell them that she is trying to get in touch with them.  I won't be calling or relaying any message since I don't know who either of them are and I don't even know how they got my phone # in the first place.

received message on unpublished land line, called and spoke to Stephanie Garcia, insisted person she was calling about used me as a reference, when questioned she did not have ANY information as to date of reference or what it concerned ?  Asked if I had contact numbers, I stated we are not in contact and she asked why, told her it wasn't anyone's business. Requested to be taken out of their database, she advised me to tell person not to use me as reference..advised her not to call my number again.

She works for a collection agency. As per her statement when questioned.

She is a so called "stephanie garcia" and is calling to collect debt. And ofcourse she is trying to admit you know the person or give you information on the person.