Protection, fairness, trust.

You want to report a violation of our corporate values, legal regulations or any other ethically or morally unacceptable action. On the next page, we will provide you with a technical space that is accessible only to you and us. Here you can submit your information confidentially to our whistleblower team, where it will be processed confidentially.

Of course, we respect your decision if you do not want to share your name with us. In this case, you can set up a special protected mailbox through which you can communicate with us. This is important because often questions arise in the course of processing that we can only clarify with your help. Therefore, we are very grateful if you respond to our inquiries.

Please note that we cannot answer your customer service questions here. If your question concerns a specific order, please contact our customer service at 030/40 50 400 or fill out our contact form.

For general feedback, please send us an email to  

How our whistleblower system protects you

  • The system is like a locker, accessible from two sides.
  • Your details and files are transmitted encrypted.
  • We do not collect and receive any data for your identification.
  • A technical tracing to you is not possible.