What do I do if the app is not working properly?

First, check that you have the latest version of the app installed. If the problem persists, contact our customer service centre. We will be happy to help.

If you notice a malfunction on our website (e.g. incorrect price calculation or a 404 error), you can also report it to our customer service – ideally with a screenshot or video recording showing the issue. Your feedback helps us continuously improve the website.

Updated on: 29/04/2026