I got the same message but figure it is some kind of scam. I listened to try to see what the hook is, but I didn't call the number he gave me that I had to call back "immediately" so I could get my money. I googled it instead and found this.
Yeah I called to play along with them, and said i no longer am interested, to take me off the call list. He said his advocate will call me back to take me to court for waisting the governments time.
These people are running a SCAM!!! They randomly call people (from 970-123-6459) saying they are with the US Government Grant Department in Washington DC. They congratulate them for being selected to receive a grant of $6,000 for paying taxes on time. They give a reference number and tell you to call 206-201-2560 for more information. A guy calling himself Chris Adams says that to receive the $6000 you have to confirm your identity by sending $200 by Western union (but will negotiate to $100) to India, where the grant will be processed, they have you hold on the line while they confirm the transfer, then go on to congratulate you as the recipient of this award but that you have to send another $399 to pay the taxes to be able to receive this grant money and they guarantee (verbally) that you will receive $6599 immediately upon their receipt of the fees. They threaten that the US Government will charge you a $2,000 fee for cancellation of the transfer of $6000 and that the Government will contact you directly and charge interest if the $399 is not received with-in two hours. They continue to hold you on the line while the transfer completes and then they hang up. There is no money sent back and they do not return your fee, nor do they follow-up on their guarantee. After all that I went online and found that 206-201-2560 is a land line in Seattle Washington, registered to a private individual. This is a horrible scam, they are collecting thousands of dollars, not paying taxes nor are they running a legitimate program. They need to be stopped!
If you get a call from any of these three names Chris Adams, Andy Carson, Richey Johnson, they are running a SCAM claiming to be the US Grant Department and they will give you grant money. They have a very convincing line to suck you in, I was unfortunately.