Strobat Martketing and Research INC D & C Consultants Inc Claimed that I won a sweepstakes which I didn't enter and sent a fraudulent check to me Tricare Payment, Wisconsin

I received a letter in the mail with a post mark from Canada Post, there was no return address on the envelope which was address to me.  When I open the letter there was a check for $3,679.00( Tricare Payment P.O. Box 7889, Madison, WI 53707-7889 logo) which was a part of my winnings of  $28,500.00.  Lucky me! The letter states that before I can deposit the check (which is drawn from JPMorganChase, NA Columbus, OH)  I must call Jim Anderson at 647-219-3464(goggle and its a cell number).  Per this letter it says that "The enclosed check for $3,679.00 is part of your winnings and has been sent to you to help cover for the insurance and processing charges.  The total amount for the insurance and processing charges is $2,987.32. I guess the balance would be mines.  Also the check does look good, with the security features included and the water color.  It also has "0006189317" as the check number, :044115443: as the routing number and :937619823" as the account number. I wonder if Chase knows about this.  And yes I goggle everything name and address listed on this letter and check and found only the the 647-219-3464 is a cell number listed in Canada.