415-234-9480 called and left a message on my phone saying ".. to return the call. The issue at hand is extremely time sensitive. I am Officer Julie Smith from the Internal Revenue Service and the hotline to my position is 415-234-9480, I repeat 415-234-9480. Don't disregard this message and do return the call before we take any action against you. Goodby and take care." all in a very computerized voice. When trying to return the call it only rang and rang, no voicemail. Having known several people who worked for the IRS, this is not how contact works. This is a SCAM and needs to be investigated. I have turned it into the IRS.