This is some kind of debt collecting scam. They do not leave a voicemail when calling you. I called the number back anonymously and it went straight to an automated system with no company name, asking to please hold for a representative. An agent comes to the phone and states her name as Nicole and that this call is being recorded. She gives no company name whatever and asks for your name, so I hung up and blocked the number. Sadly, these type of calls have been coming in frequently every since I filed my taxes in March. THANKS IRS!!!