You can renew your annual pass at the ticket office on-site or online. Renewal is possible up to 1 year after your old pass expires. A renewal discount is offered for regular annual passes. If you wish to renew your pass later, you can simply purchase a new pass. Renewal of a seasonal pass for children between 85 and 99 cm can only be done at the ticket office and not online. An annual pass with monthly payment is automatically renewed.