Hi there. I think we've been here before... when I moved from Bristol to NZ, I culled almost all of my 12" records, and I did have a good look through what's left here in NZ - the other day, and it's not there.
At that time (2003) I wouldn't have known what it was, and if it wasn't specifically something I wanted to keep, I sold the lot off to a pro collector in Bristol - so it's out there somewhere.
How did I get it? Mid-90s I was involved in music, clubs, DJs, reviews/journalism etc and used to get heaps of white label dance music sent through. I also used to hang out at specialist record shops at the weekends, digging through their bins. The shop would sell off all of the locals stuff - so, if I get sent a pile of white labels I don't like I'll flick them onto the shop (or other DJs) and get a few things I DO like in return (personally was into hard house and techno, and ambient). I think I found it at a shop, not sent to me personally as a promo, but I couldn't swear on it.