I'm wondering if PRH might be liable under these Consumer Protection Laws?
"Consumer Protection from Unfair Trading Regulations
The Consumer Protection from Unfair Trading Regulations (SI 2008/1977) (CPRs) generally prohibits unfair commercial practices. A commercial practice is unfair if it contravenes the requirements of professional diligence and materially distorts the economic behaviour of the average consumer in relation to a product (or is likely to do so) (regulation 3, CPRs).
Commercial practices are misleading if they give false information which deceives (or is likely to deceive) the average consumer and causes or is likely to cause him to take a transactional decision that he would not otherwise have taken (even if the information given is factually correct) (regulation 5, CPRs).
Commercial practices are misleading if, taking into account the circumstances of the commercial practice and the medium used to communicate it, they omit, hide, disguise or delay material information so as to cause the average consumer to take a transactional decision that they would not otherwise have made (regulation 6, CPRs).
From this webpage
gadlegal.co.uk/news/commercial-law/misleading-websites-oft-takes-action/