Who called from 3602006831

I too had received two calls, I am guessing back to back, there were two messages on my answering machine, saying the IRS is filing suit to call 360-200-6831.  I am also confident this is a SCAM.

Told me that the government was given me 7,500 an that it would be in my bank account if I send the 225an I have not seen anything.

This is a scam. As per Tamianth:

To report the fraud, go here:
http://www.grants.gov/web/grants/support/general-support/grant-fraud.html
Their number is listed , along with an email address, at the top of the page.
Also here:
http://www.consumer.ftc.gov/articles/0113-government-grant-scams

http://www.usa.gov/