"Message. I need you or your retained attorney of record to return the call. Issue at hand is extremely time sensitive. I am officer Heather Grey from Internal Revenue Service and the hotline to my division is 415-358-1672. Either Pete. It's 415-358-1672. Gallon of disregard this message and do return the call before we take any action against you. Goodbye and take care."
Have gotten calls from this number 3 times already and everytime I answer is a computer saying "this is a call from internal revenue service the second you get this" and that's is when I hang up