I had this same thing happen to me. Did anyone figure out what this is? I called back and they asked for my name and address...naturally when I asked for "Catherine Richardson" she was "unavailable." Any further information about this?

I just received the exact same robot message from phone number 240-204-9120 ! This must be a scam.

Today, I received a call from an "Officer Catherine Richardson" from the phone number (425) 616-0859.

I just received the exact same call and message, but from a Washington state (425 area code) number.  "Department of Tax" is not a real FBI department.  Also "an arrest warrant has been issued for 'further queries' " is an idiotic statement.  It's like the police saying "We have some questions for you so we're just going to arrest you."  Definitely a scam.  I could write a better script for them.

I called the number back and a foreign gentleman answered. He asked for my name and zip code then told me he was going to read off my information and it was important that I not intrupt. I would not use the "phrases" he was asking me to say and was getting irritated when I refused to listen to what he was saying until he provided proof of what he was talking about. He got irrate and I hung up.