Thieves! Scoundrels!
I hate these stories. Why can't people keep their cotton-picking hands off other people's stuff? Bikes are especially personal - I've lost a few over the years, and then there was my custom Harley Davidson which broke my heart. The frame was eventually found at the bottom of a lake in Texas.
It's probably been taken for a quick few quid, and it's the dicks (sorry... unsophisticated buyers
) that make it possible. Knaves!
I hope you get it back quickly Simon, and in unmarked condition.
Sam