Data relating to journeys, purchases and means of payment and information on the device according to chapter D. Personal data processed are kept for 12 months from the end of the journey for the performance of services, for the after-servicesales of FAIRTIQ and the transport companies and tariff communities partners, for the fight against fraud and to improve services, in particular for price optimization. These data are subsequently deleted/anonymised and a link to the persons concerned is then no longer possible. General customer information and companion details are kept for 2 years from the last trip or after joining a campaign (depending on the most recent event) to fight fraud, communicate with users and commercial purposes. Data can also be backed up in backup files and temporary databases (caches) after deletion. The permanent deletion takes place when the backup files are overwritten (usually after a few days).