Received call from " XXXX '' XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX , XXXX XXXX 
XXXX XXXX XXXX XXXX, IL XXXX I owe XXXX XXXX Bank some huge undisclosed sum of money. He states that the last activity was in 2004. 

Claims that they have authorized an immediate lawsuit against me in my county unless I quality for their hardship program AND immediately pay off this debt. 

The caller refused to identify himself, provide phone number, or to confirm his company name, address, etc. 

I repeatedly demanded written information be mailed to me. The caller refused to confirm that any mailing had been or will be sent. Only that I had to know about the debt and had to pay immediately unless I want the sheriff at my home. I was unable to get any direct contact information from the caller. 

The caller just kept threatening that a lawsuit was pending unless I pay. For the record : 1 ) I do n't owe the debt, and, 2 ) the alleged debt is out of statute for Pennsylvania. 

What is my recourse with the company?