They have agreed to change how they display information where needed and signed up to sector-wide principles for complying with consumer protection law.

The Competition and Markets Authority principles include not giving a false impression of a room’s popularity and always displaying the full cost of a room upfront.

Most have already made any necessary changes. However, Accor, IHG, Hilton, Marriott, Radisson Hotel Group, and Wyndham Hotels and Resorts requested more time as they will need to introduce specific technical updates so that UK customers are always shown the full cost of a room upfront when searching for hotels abroad.

Related: Competition watchdog outlines changes imposed on OTAs