Open the account menu in the top-right corner and choose Account Settings, then go to Subscription → Billing.
On the Payment details card, click the edit (pencil) icon.
Fill in your card information and billing address, then click Update payment details.
You can update individual details — such as the billing address — without re-entering your full card number or CVC. If you change the card number or CVC, you'll be asked to re-enter them. If anything is missing or invalid, AgileLaw highlights the specific field.