You can follow the steps below to update your delivery address:
Step 1: Log in to your account and click on "View and Edit Subscriptions."
Step 2: Select the subscription you’d like to update, then click on "Manage Your Subscription" on the Subscription Details page.
A quick preview of the screens is provided below.
Step 3: On the right side of the screen, you’ll see "Shipping Address" with a "Change" option next to it. Click on "Change" to update the shipping address for your upcoming order.