Caller said (I love this!) transcript from iPhone
Federal agents DO NOT speak this way

Hartman of the treasury is 248-679-4331 now if you don't return the call or if we don't hear from your criminal attorney then the only thing we can do is wish you good luck as the situation totally unfolds on you as there is a legal petition notice filed under your name by the IRS for taxes _⁠_⁠_⁠_⁠_⁠_⁠_⁠_ and tax fraud before this matter gets executed to the courthouse and before you get arrested if you need any information or if you have any question kind of they call the United States department of the treasury back at 248-679-4331 thank you…”

Haha the user above had the same exact call I received, word for word! It's so ridiculous that these people think that they can fool people so easily with incorrect grammar and threats that you most definitely wouldn't be receiving via phone calls...