<prompt> Human: I received a call today from my father in law, that someone had contacted him about a complaint about me. I called the number, and this is a collector threatening to sue. Ive received nothing in the mail. They told me the original company was a mail order catalog company. I simply told them I was unaware of this debt and needed them to send me details. They refused to do that. They refused to provide me a company name the collector, address, or anything else. While I may have had dealings with the company, Im not even sure...if I DID, the last activity would have been 1998. Whatever I DID have open back then, was taken care of over 15 years ago. I dont have any paperwork back that far. Nothing on my credit report reflects this debt. Should I even be concerned about this? Its got to be past the SOL in any state Im in FL, being 20 years old, and being that the company they mentioned is simply a retail mail order company that I dont even think is in business anymore.  <response>: If they wont send a letter of verification for the debt, then you should not be concerned.In essence, if theyre not willing to sue you, then they cant do anything. 