An authorisation letter is valid for 30 days.
After this period, you will receive the error message (‘Green Tiger’) when scanning the QR code. An expired authorisation letter cannot be reactivated; you will need to request a new one.
Would you like to request a new authorisation letter? Please contact the service desk during opening hours. You can email us at helpdesk@digidentity.com or ask our chatbot to connect you with an agent.