To change the payment details linked to your MuseScore account, please follow these steps:
I subscribed through the MuseScore.com website:
Please follow these steps:
1. Open the profile menu (a round icon in the top right corner).
2. Click 'Settings', then 'Subscription.'
3. Click 'Edit payment details' and update your information.
4. Save changes.
I subscribed through the MuseScore mobile and tablet app:
Google Play: This Google Play support article will help you to add, remove, or edit your payment method.
Apple Store: This Apple support article will help you to change, add, or remove your Apple ID payment methods.