Can I change which account the EuroBonus card is linked to?
No, it cannot be changed afterwards.
However, you can order a digital card and link it to the account. If you already have a digital card, you can close it and create a new one. Just keep in mind that you can order a maximum of 3 digital cards within a rolling 30-day period.
How do I cancel the SAS x Lunar subscription?
You can cancel and close your SAS EuroBonus card in the app:
Go to your SAS EuroBonus page in the app under 'Discover'
Click on 'Settings'
Click on 'Cancel subscription' and confirm your cancellation
You should receive a confirmation notification in the app and see when the subscription ends. There is a notice period of the current month. If you change your mind, you can always choose to renew the subscription before it ends.