Received message from someone claiming to be from IRS, "discrepancy in last couple years of returns", call her back on her direct line (this number). I'm not calling!!! Gave her name as Kathy something - last name seemed to begin with B, not clear

Just received the same call on Dec. 2nd. She said her name was Kathy Brown. Gave number to call back. Didn't call back. I believe they just arrested a bunch of foreigners that was calling claiming to be from the I.R.S.