I got the exact same message from Sean Marshall twice. Never called back. I then received another similar call today with an automated message from another number 209-224-9592, which I also searched with similar scam reports of being a fake IRS officer.
Thank God I read all of your messages before responding! Being out of the country I just checked my voicemail today and had a message from the same man. I also had three other messages from an automated voice from phone number 209-224-9592 - same kind of threats. I have to say that my heart skipped a beat until it all clicked. Scammers. They should rot in an especially dark place in hell!
I got a call from the same person as above and i recorded it and listened it very carefully all the people who have complained have not got the even person name right they are just jumping the band wagon and don't even know what is all about first they should get the facts,the person calling is helping to resolve the matter.