The Consultation Paper proposes to extend the application of the Principles for Businesses and certain specific rules about promotions and communications so they cover wider categories of businesses the FCA regulate (including businesses authorised or registered under the Payment Services Regulations or the Electronic Money Regulations).
https://www.fca.org.uk/news/press-releases/fca-consults-rules-and-guidance-improve-conduct-and-communications-payment-services-and-e-money