If it sounds too good to be true, it definitely is. Have you ever had the phone call congratulating you on winning the opportunity to buy a time-share half-price? Same kind of thing - it's not a prize at all! My husband's gran has spent thousands (NOT an exaggeration!) in so-called admin fees or deposits, to enable whichever company it is to send her new ferrari/cheque for 2 million etc. She's been plagued for 2 or 3 years, because these dodgy places exchange details of all the gullible old dears they've caught. This will be the same. Send them anything now, and you'll get dozens more offers every week for all eternity!!
Hub just read over my shoulder and said "don't do it!" So I'll leave that with you....!