can anyone help me with adding the right tags for the google merchant reviews?

The integration I’m trying to do is: https://support.google.com/merchants/answer/7106244

I need to pull the current order number, billing email and the delivery date into the integration code – I can get the user email but I’m failing to get the order number and a delivery address. Has any one done this – it looks like it should be easy to do.

Please help me 🙂

cheers

<?php 

		$email = wpsc_get_customer_meta( 'billingemail' );

		?>
<script src="https://apis.google.com/js/platform.js?onload=renderOptIn" async defer></script>

<script>
  window.renderOptIn = function() {
    window.gapi.load('surveyoptin', function() {
      window.gapi.surveyoptin.render(
        {
          // REQUIRED FIELDS
          "merchant_id": 113774940,
          "order_id": "orderid",
          "email": "<?php echo $email; ?>",
          "delivery_country": "UK",
          "estimated_delivery_date": "2018-10-31",

          
          
        });
    });
  }
</script>

The page I need help with: [log in to see the link]