Thank you for the heads up. My favorite calls these days are the helpful folks who call to tell me they're getting an alert from my computer. It is my personal mission to waste as much of their time as possible.

my 12 year old is a seasoned professional at dealing with these a-holes. He keeps them on the phone forever and can get them worked up to the point where they are yelling and losing their shit. It is his super power.

Best laugh today

The one where they threaten you with jail and all, etc. Then they demanded my SS number. I said, really? You're from the IRS. You should already have it!..click...

They seem to be impersonating a federal office too.

I only answer if I am bored, and then I go in and block the number afterwards.
If they want to send me something or ask for an address, I keep the local FBI office address and phone number near the phone and give them that.
Otherwise, if I am really bored, I will just agree with them and keep them on the phone as long as I can. When they get to the point of needing my credit card number, I tell them my wallet is in the car and can they wait a couple of minutes while I go get it. A few have stayed on for 5 minutes waiting for me to come back.
One time, after I had agreed to a $99 charge and was asked for the credit card, I told him I didn't have a card. He asked if I would prefer to pay by check or money order, and I told him that my family had a court order that I wasn't allowed to handle money. He actually asked then if there was someone else I could talk to. I told him to call my sister, and gave him the FBI office number.

I can usually end the calls simply by asking "Could I get your full name, please?"