How do you update a payment

You can make any billing changes by going to Account Settings > Billing.

Update Payment

To change your payment information, click the (update) link:

A popup will allow you to change payment methods or update your billing information:

After entering your new information, be sure to click the Update button.

Remove Payment

To remove your credit card you will first need to Cancel your subscription on the right-hand side.

A popup will appear for you to confirm the cancellation. Once that's confirmed, you will see a "clear" link displayed next to your credit card information. Select the update or clear link to change your billing information.

You can find more details about the Billing process here.