diff --git a/src/Rapid/Model/RefundDetails.php b/src/Rapid/Model/RefundDetails.php
index 1eb6e56..528a49b 100644
--- a/src/Rapid/Model/RefundDetails.php
+++ b/src/Rapid/Model/RefundDetails.php
@@ -21,5 +21,17 @@ class RefundDetails extends AbstractModel
         'InvoiceDescription',
         'InvoiceReference',
         'CurrencyCode',
+        'AuthorisationID',
+    	'STAN',
+    	'ReceiptId',
+    	'Receipt',
+    	'ResponseCode',
+    	'ResponseText',
+    	'MerchantID',
+    	'TerminalID',
+    	'PosReference',
+    	'SettlementDate',
+    	'ReceiptGUID',
+    	'MposDeviceId'
     ];
-}
+}
\ No newline at end of file