Global Promotions sent me a check for $4,450.00 from which I was the third category winner of the "Mega Millions Draw" held on September 17, 2007 Strathmore Alberta

I received a letter from Global Promotions which states final notice We are pleased to inform you, that you are one of the third category winners of "The Mega Millions Draw" held on September 15, 2007. It stated that I purchased a sweepstakes ticket, which drew the lucky winning numbers, you are therefore entitled to the sum of US 250,000 payable to you by bank draft, or certified cheque and will be delivered to you by special courier company. Enclosed was a check for $4,450.00 which has been deducted from my winnings. The purpose of the cheque is to pay for the Tax Clearance Fee. The pmt info stated was to contact Tax agent Valerie Johnson at 864-756 Main Street, Strathmore, AB Canada Tax Amount $3,400.00 us dollars Pmt method Money Gram, or Western Union. You are advised to contact your claims agent Jessica Anderson, as soon asa you receive this notification at 1-778-317-5117 to begin the claims process on your winnings. Thank you and congratulations! Note:Please do not act on this notice until you speak to your agent signed by Sean Williams (Promotions Manager) Now Pavillion Bank/Hexter-Fair Title Company appears to be a real bank and the check is a real check, but when you try to call your agent it states the mail box is full, I want to know what is the catch cause I know I didn't purchase a sweepstakes ticket in 07, if anyone has any info on this or they need my info please contact me, this is some kind of scam, I want to know if anyone actually tried to cash in the check?

Maria
Patchogue, New York
U.S.A.