Well, I Googled for "website design uk". If their technique was half as good as you believe they would be well up the results table. In practice they weren't in the first 5 pages ..... and that's enough for me! As for Page Rank, well, my own site has a value of 5 - and that is very old, very out of date and very old fashioned. But the content is good and the inbound and outbound links are good - and in a similar search it made Page 4. (and no, I'm not worried - I'm semi-retired and just build the odd site for friends and charities nowadays for fun!). So - stick to well-founded SEO techniques - content first and foremost and leave them to play silly b*****s!
Chris