Funny, none of the old or current numbers match, seem to have grabbed an old company selling components such as transformers and reused it for scamming people with computers 
http://web.archive.org/web/20070307004451/http://www.electrocom.uk.com/
The old company seems to have stumbled and lost their website, so it is ripe for a slight name change scam.
Edit ... their previous site, at least one of them which they already lost electricalsuk.co.uk
I like the feedback, it seems to be a copy of
http://www.worldstores.co.uk/docs/customerFeedback.html
http://web.archive.org/web/20070307004451/http://www.electrocom.uk.com/
The old company seems to have stumbled and lost their website, so it is ripe for a slight name change scam.
Edit ... their previous site, at least one of them which they already lost electricalsuk.co.uk
I like the feedback, it seems to be a copy of
http://www.worldstores.co.uk/docs/customerFeedback.html