Just got a phone call from them.  Idiot.

Exactly what I got too.

Heavy accent, Claiming to be from The Treasury department.  The Treasury department do not contact you by phone. Any initial contact from the Treasury department is made thru the US mail. These people are crooks. Watch out. I have received two calls to my cell numbers.

I spoke with them and asked why their sole purpose was to rip people off, she hung up so I called back...
Asked again about their purpose and that the Treasury Daepartment DOES NOT make phone calls, she hung up...
Called back and got a "manager". Asked him the same question and why he says he represents his mother raising him to rip people off, he hung up. He called back on number16303184762 (this number isn't even assigned yet)
I called back the 3525879708 number and I said the same thing demanding to know why his sole purpose was to rip people off and told him I knew people in the US Treasury department and when I call there I get an American accent(to this point 4 people 4 with Hindi accent) he hung up. The last guy tried to talk me down and when I asked him why he was representing himself as a U Treasury worker he told me that he wasn't("oh crap") and hung up.
I called back 15 more times until they wouldn't answer the phone anymore, only took about 5 or 6 minutes for the whole thing

I just got the same call from the same number.