https://www.legalfutures.co.uk/latest-news/law-firms-overcharging-ppi-clients-says-sra-as-it-warns-against-use-of-standard-letters
A warning notice by the Solicitors Regulation Authority last August which stated that charging more than 15% could be considered unreasonable, unless justified by the work and risk involved, seems to have been ignored by four out of five firms practising in this area,