After logging into your Ekirana account, please look for your Address Book on the left bar. Under address book, you can add multiple addresses and define an address as your default billing and a default shipping address.
If you'd like to change define an address as Default Billing or Shipping address, you can go into Change Shipping address and update the new address.
If you have multiple addresses in your address book, you can as well well click on Edit Address and select it as your default Shipping or Billing address.
