Chris Brown Victim of FAKE Booking Agent

9/27/2011 6:50 PM PDT

Chris Brown -- Victim of Fake Agent in Vancouver Concert Deal

Chris Brown
was targeted by a fake agent who setup and announced a concert date for the singer in Vancouver ... according to Brown's rep.

TMZ has obtained the cease and desist letter Chris' legal team fired off ... accusing a company called EJ Media Group of fraudulently presenting itself as a booking agent in order to organize a November 10 concert in Vancouver.

The concert was announced to the public today ... but Chris quickly tweeted that it was phony.

Brown's rep tells us they were alerted to the fake show when the venue -- the Pacific Coliseum -- contacted them. We're told the venue already wired $25,000 to EJ Media Group to secure the gig.

The cease and desist letter demands, among other things, that EJ Media return the money.

EJ Media Group in New York City has contacted TMZ to say it is NOT involved in the Chris Brown concert fraud. A rep for the company points out the cease and desist letter was sent to a Broadway address -- but they're located on Fifth Avenue ... meaning, they're not the ones messing with Chris.

The rep says they are trying to figure out if someone else is illegally using their company name.