diff --git a/enrol/authorize/authorizenetlib.php b/enrol/authorize/authorizenetlib.php
index e0b8eeb2fec..d16adde9479 100644
--- a/enrol/authorize/authorizenetlib.php
+++ b/enrol/authorize/authorizenetlib.php
@@ -82,7 +82,7 @@ function authorize_expired(&$order)
  * @param string &$message Information about error message if this function returns false.
  * @param object &$extra Extra data that used for refunding and credit card information.
  * @param int $action Which action will be performed. See AN_ACTION_*
- * @param string $cctype Credit card type, used internally to configure types automatically.
+ * @param string $cctype Used internally to configure credit types automatically.
  * @return bool true Transaction was successful, false otherwise. Use $message for reason.
  * @author Ethem Evlice <ethem a.t evlice d.o.t com>
  * @uses $CFG
@@ -95,7 +95,7 @@ function authorize_action(&$order, &$message, &$extra, $action=AN_ACTION_NONE, $
     $test = !empty($CFG->an_test);
 
     if (!isset($conststring)) {
-        $consdata = array(
+        $constdata = array(
              'x_version'         => '3.1',
              'x_delim_data'      => 'True',
              'x_delim_char'      => AN_DELIM,
@@ -106,7 +106,7 @@ function authorize_action(&$order, &$message, &$extra, $action=AN_ACTION_NONE, $
              'x_test_request'    => $test ? 'TRUE' : 'FALSE'
         );
         $str = '';
-        foreach($consdata as $ky => $vl) {
+        foreach($constdata as $ky => $vl) {
             $str .= $ky . '=' . urlencode($vl) . '&';
         }
         $str .= (!empty($CFG->an_tran_key)) ?
@@ -198,20 +198,8 @@ function authorize_action(&$order, &$message, &$extra, $action=AN_ACTION_NONE, $
 
         case AN_ACTION_VOID:
         {
-            if ($order->status == AN_STATUS_AUTH) {
-                if (authorize_expired($order)) {
-                    $message = "Authorized transaction must be voided within 30 days. EXPIRED!";
-                    return false;
-                }
-            }
-            elseif ($order->status == AN_STATUS_AUTHCAPTURE or $order->status == AN_STATUS_CREDIT) {
-                if (authorize_settled($order)) {
-                    $message = "Settled transaction cannot be voided. Check Cut-Off time!";
-                    return false;
-                }
-            }
-            else {
-                $message = "Order status must be authorized/pending capture or captured-refunded/pending settlement!";
+            if (authorize_expired($order) || authorize_settled($order)) {
+                $message = "The transaction cannot be voided due to the fact that it is expired or settled.";
                 return false;
             }
             $poststring .= '&x_type=VOID&x_trans_id=' . urlencode($order->transid);