That's terrible to hear, I hate having to provide extra information over the internet and avoid it at all costs whenever possible. It's good to hear that they had the camera in stock so quickly though, I found one over here in a furniture shop just by chance; but the camera stores and catalogs for the photo magazines have ceased advertising for now because they haven't been able to keep them in stock. Pentax isn't able to keep up with the insane demand for this camera, and people snatch them up just as soon as they become available even without advertising!
If you do continue to have problems with them however, try www.adorama.com, they're pretty much the biggest online photo retailer here in the USA and will (as best as I can tell) ship to england. You may even find that buying this way is a bit less expensive.
SLC