To change the credit card for your subscription, add the new card on the Stripe billing page and set it as the default. Each project is billed separately, so choose the project whose card you want to change.
If you want to change the credit card you use to pay for your subscription, you can do so by clicking on the profile icon and selecting My account.
This will take you to your account settings; each of your projects has separate billing. Select the one for which you'd like to edit your credit card and click Manage billing.
You will be redirected to billing management in Stripe, where you can add a new credit card. Click on the three dots to make it the default card used for billing.
