Have you got any of those ? I know sev people who have & I did too. They tell you the IRS is about to audit you & they can help fix the problem. They are trying to get you to give out personal information. The IRS does NOT call people--they send written notification of any problems. Thre was an article in our local paper warning about this yesterday. I hung up on them--I have not paid tax for yrs as I am retired & not working. But some people may fall for this. Always some new scam out there.