On the 'Account Settings' page you can amend saved details. This is where to edit your name or update the primary phone number saved to your account.
Here you can also see a list of all saved payment methods used on your previous orders. To remove a saved payment method just click the green trash icon to the right of it.
In the 'Locations' section you can add and remove delivery addresses and edit your details, including phone number & email address. This is especially important for ensuring you receive all order updates.