Vayo Financial Incorporated Sent a letter saying I was a sweepstakes winner Los Angeles California

Received a letter saying that I was "one of the 2nd prize winner in the second category of the EUROPEAN, AFRICAN and USA Consumer sweepstakes , in conjunction with USA Departmental Stores."

It references a Claim #CAL 34822MD and attaches a serial number 81149 to my name. Says I matched the first five lucky winning numbers which won me $250,000. Payment "will be made by a CERTIFIED CHECK, and will be brought to (me) in person by our special courier company."

Enclosed was a check #66710651 drawn on Bank Of America, Dekalb County, Atlanta, Georgia. for $1870.00 provided to help pay for the processing fee of $1750.00. The letter advises me to contact claims agent:Mr. Walter Oni@ 1-877 533 8983 to start claim processing and to activate the check.

Way too many red flags: I never entered such a sweepstakes, No address for the Bank-there are several locations in Dekalb county, GA,, check is for more than processing fee, grammatical errors.

Does anyone know what would happen if I deposited the check without following the procedure set forth in the letter?