Passion Discs list a lot of stuff I'm interested in, but I've never ordered from them because of their untraceability. You will not find a street address anywhere on their site (I wanted to pay by cheque, so I needed somewhere to post it). Whois info gives:

Registrant:
       Ian Morrison

    Trading as:
       Passion Music

    Registrant type:
       UK Sole Trader

    Registrant's address:
       37 Red Lion Lane
       Overton
       Basingstoke
       Hampshire
       RG25 3HH
       United Kingdom

But when I wrote to that address I never got an answer.

There is obviously something not quite on the up-and-up here. I suspect a tax fiddle.