Login to your Lumin account.
Click on your profile icon (top-right corner of the screen).
Select Billing.
Under Billing Info, click the pencil icon.
Enter your new card details.
Click Save.
Update your credit card information directly from your Billing settings.
Login to your Lumin account.
Click on your profile icon (top-right corner of the screen).
Select Billing.
Under Billing Info, click the pencil icon.
Enter your new card details.
Click Save.