Complaint Review: James Oliver-US Federal Grant Department

I was contacted by an individual named James Oliver.  He said he was from the US Federal Grant Department and that I have been preapproved to recieve $7300.00/year for 4 years.  He knew my name, age, DOB and email address.  He gave me a number to call in Washington DC (202-780-9783) to talk to a "Senior Account Manager" with my  approval ID #.  I immediately got on this website and saw that I was not the only one and never called the number.  I informed my bank of the situation and they are monitoring my account.