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.