Microsoft Lottery — not giving my winning prize money

i am informed that i win microsoft ottery of prize money 750000 pound they said contact to parcel drop courier service for your parcel which include of cheque and certificate. i contect to them they said first you pay 395 to 505 pound delivery charges then we send your parcel to you.now they are not recieing my mail and also not giving my cheque of prize money you send me suggestion on my email address [protected]@yahoo.com