Enhanced Recovery Company, LLC Portfolio Recovery Illegal collection practices, multiple calls even after being advised individual unknown Jacksonville Florida

We received a call twice yesterday from this company, caller ID showed (800) 390-7586.  The first time just after 08:00 and the second time just before 21:00.  Not recognizing the number we allowed it to roll over to our voice mail.

Upon reveiwing the recorded message it went something like this:  This is an attempt to collect a debt from [individual's name] any information obtained will be used for this purpose.  If you are NOT [individual's name], please delete this message as it does not concern you.  The recording goes on to leave a return phone number and a reference number.

Having done collections in the past, I know it is illegal for a company to advise they're attempting to collect a debt on individuals [by name].  They can say it's an important business matter, etc.  But never indicate the purpose is to collect a debt.  Especially if the person has been reported as this could result in Libel and Slander charges against the agency.

We have asked them multiple times to remove our number, we don't know this person.  They go on to ask if we know how to reach this person.  They continue to call.