I got the same call with the same message. I called back and asked for his name and Id #. He said his name was Alex Page id# 150794. Then I asked for the number to his legal department so that my attorney could contact them to get this straightened out and he hung up on me and now they will not answer the phone when I call. They claim the are the US Treasury.
Didnt pick up the call, only got half of a voicemail from the same male being described in everyone's post. The voicemail started halfway through of him talking and was the same thing list above.
Definitely a scam. Left a threatening voicemail about a "federal offense" and how I needed to call him back to "help him help me." Sounded like an Indian male.