The informal letter must contain all relevant information about the customer and the irregularity of their journey. Relevant data are:

• Your address
• Date of journey
• Description of the planned train connection
• Details of the actual itinerary
• Account details, if applicable
• Signature

Privacy statement: The personal data is collected, processed and used automatically exclusively for processing and control purposes, as well as for plausibility checks between the companies involved, unless the customer has explicitly consented to its use for customer service purposes.