Why bother ?
UK law is notoriously parsimonious when it comes to damages for the little man.
Anyone hoping for a payout needs to show they have suffered a material loss. If you want megabucks, you need a US court that can impose punitive damages.
While I'm here, what did people do with the VAT refund from HMRC for the illegal VAT charged on Jaffa Cakes ? What's that ? HRMC never had to refund it ? Wow. What a surprise.