You can add or update your payment method at any time through your My Mirror profile. Here's how:
Log in to your My Mirror account and navigate to your Profile tab. On a desktop or laptop, this is in the left-hand side menu. On a mobile device, find it under the dropdown menu near your name in the top right-hand corner.
Scroll down to Payment methods.
Enter your new card details and click Save your payment method.
If you have more than one card saved, you can select which one is your primary payment method.
You can return to this section at any time to view, update or remove saved cards.