I got the same message word for word from 202-754-8181 same case # as well cf93271 scared me for a moment since I didn't receive anything by mail I was confused until I looked it up and saw it was a scam!!! Thank goodness for sites like this!!!
Just got a call. The guy said the IRS was filing a lawsuit against me and that I would sit in jail for 72 hours if I didn't settle out of the courthouse. He talked really fast. Then made me wait while he put on his 'boss' to explain the rest. Their accents were so thick they knew they weren't fooling me after awhile so she hung up mid sentence. lol.