Kept receiving calls from unavailable.  Last call give an automated message saying it was IRS and it was final attempt to contact me before sueing me.

Answering machine stated that this was the IRS and it was the last chance to call them because they were filing a lawsuit.
You can tell that it was a machine voice not a real person.  Didn't leave a name.  The return phone number left was very mechanical.

Got a sketchy, jerky female-robot call from this number saying the IRS is going to take action against me and to call this number immediately. Total scam... BEWARE! Especially elderly - also - came right after an automated return call from Social Security that I had placed. I think someone is phishing Social Security. Wake up US GOVT!!

Demanded large amounts of cash to be withdrawn claiming to be an IRS rep.  Reported to FTC and IRS.

I got a message left on my voicemail saying it was the IRS and it was my last chance before being sued.  At first when I called because I said I did not know my new number that I got four days ago they hung up. I called back and the person I spoke to said his name was Officer Alex Fisher and that they need my lawyer's information to send the lawsuit and that their was going to be a warrant for my address because I committed tax fraud.  I hung up after getting his name and the information I needed, when I called back and asked for Officer Alex Fisher the person just hung up the phone and they won't answer the phone anymore. SCAM