Just been looking at the image of the guy's passport. It is definitely fake, as compared with my expired passport from the same generation as that one. If you look just under the "f" of "of" (as in United Kingdom of...)you will see a small typed letter "P". That is in the same font and size as the lettering on the rest of the passport.
You can see that the lettering in his fake is much, much larger and the wrong font. Also it is cropped and missing the bottom 20%. So the whole passport image is a complete fake.
The utility bill is also a fake. As noted above the address is a fake. The bottom of the page is cropped (the bit where the bank sort code is for direct debit payment). And the last time a utility bill looked like that was more than a decade ago. And even then it did not look like that - they had by law to state the dates for which the bill related.
This, from the British Gas website is what a real bill looks like https://www.britishgas.co.uk/youraccount/discover/your-bill/understanding-your-bill.html . Note that there are four pages with an astonishing level of detail.
One potential route to tackling this POS scammer is for those who have been ripped off to contact BBC's programme Watchdog. They regularly track down people like that, confront them on the doorstep, and involve the police. http://www.bbc.co.uk/programmes/b006mg74 .
And the Police will take this very seriously. Obtaining money by fraud is a crime, and they will prosecute, particularly as this goon is a serial offender. In fact they could probably do him for money laundering too.
I feel very strongly about this clown - he is the worst of our country, preying on overseas customers who he can feel confident won't or can't track him down. Let's prove the bastard wrong.