This number left two automated v/m messages to my cellphone that I need to call immediately at their department phone number 424-305-8546.  I called back from my work phone and I let it ring 10 times - no one answered and did not go to v/m so I just hung up.

Had same thing happen as Shirley experienced, except checked this site b/4 calling 424-305-8546

It's the IRS/Treasury SCAM.  Block it.
https://www.irs.gov/uac/newsroom/irs-repeats-warning-about-phone-scams
http://www.forbes.com/sites/johnwasik/2016/06 ... u/#6cb8a18e171f
http://www.usatoday.com/story/money/2016/05/2 ... -scam/84874934/
https://www.pindropsecurity.com/irs-phone-scam-live-call_analysis/

VM left on home phone number stating that I needed to call back their department with this number to find out more information about a case that was being prepared against me

Says it's IRS and that it's my last chance to pay back taxes. I don't owe anything to IRS SO it's a bogus caller