Make with a very heavy accent called, I could not understand everything, but he LM that he was an officer with the US Treasury calling to notify me of legal action taken against me, & to call him back at 559-203-7078. The number that appeared on my Caller ID was a former Treasury Dept phone number. Clever scammers!
Heavy Indian accent asked if I had received my CB503 IRS form and IRS action already started. Had my name wrong did not ask for any other info and told me I had miscalculated tax returns two specific years could not answer my pointed questions. Informed him I had life lock!