multiple calls from a recording saying my physical address is under investigation by the IRS. Total BS.....don't call these losers back. Just let it go to voicemail and ignore it. It's a scam and they are preying on folks in an effort to get something.....probably money. The govt should go after these clowns.
If you KNOW you owe no money, or believe the call was from a fake debt collector, please take the time to read this:
http://www.consumer.ftc.gov/articles/0258-fake-debt-collectors