Returns an orderStatus field that can be used to confirm payment via Zip.

orderId returned should be persisted for successful Zip orders as it will be required to issue refunds in the future.

Possible values for orderStatus:

Created - Order has been created on Zip, but not yet completed.
Confirmed - Payment has been successfully completed on Zip.
Declined - Payment was unsuccessful on Zip.
Abandoned - Customer exited Zip payment flow before completing payment.