Yes, the correct name of the visitor must be on the card. So enter the correct details as they will be copied on your card. At the entrance, this will be checked against your ID.

You can change the personal details on a ticket via Name Change for €10. In the confirmation e-mail you received, you will find a button with the text: ‘Manage Order’. You will then see an overview of your purchased tickets. Click on ‘More actions’ at the top right and then on ‘Name Change’.

Please note: Name Change is not a safe way to exchange money and tickets between strangers. So don't be tempted to use this anyway via Marketplace, for example. There is no deadline to change a name.