I'm not going to send you one, since I don't work for Microsoft and
Microsoft doesn't answer here either.
Where did you buy the product from? If from a local store, take it back
immediately and tell the Manager what happened, someone has stolen the key.
If you bought it from ebay, etc., you are probably stuck. The only thing
you can do there is to attempt to contact the original seller.
Check out this Microsoft web page for instructions also:
http://support.microsoft.com/default.aspx?scid=kb;en-us;823570
You don't say that the product was successfully installed on your computer
but if it is, G-n-O tells you how to get the key. If not... you are out of
luck other than the suggestions above.