What?

You most certainly CAN upgrade from 32 to 64 bit, and you do NOT need to buy a new licence. Something went wrong somewhere - ring them back. I submitted a form via email to request 64 bit media.
Actually, FAO Burnsy et al. Since MS are allowing this as a "free" upgrade and only charging for the media etc, is there anything to stop people "borrowing" discs off a friend? So say I sent this guy a copy of my 64 bit disc?...
There are no serials involved and the disc is useless without a valid COA/serial so there's no harm in that right?