diff --git a/src/MarketplaceWebService/Mock.php b/src/MarketplaceWebService/Mock.php
index bf36506..d9f6ed6 100644
--- a/src/MarketplaceWebService/Mock.php
+++ b/src/MarketplaceWebService/Mock.php
@@ -425,6 +425,6 @@ public function getReportScheduleList($request)
 
     private function invoke($actionName)
     {
-        return $xml = file_get_contents('MarketplaceWebService/Mock/' . $actionName . 'Response.xml', /** search include path */ TRUE);
+        return $xml = file_get_contents(dirname(__FILE__) . '/Mock/' . $actionName . 'Response.xml', /** search include path */ TRUE);
     }
 }
\ No newline at end of file
diff --git a/src/MarketplaceWebService/Mock/SubmitFeedResponse.xml b/src/MarketplaceWebService/Mock/SubmitFeedResponse.xml
index f40f20c..2b2edc9 100644
--- a/src/MarketplaceWebService/Mock/SubmitFeedResponse.xml
+++ b/src/MarketplaceWebService/Mock/SubmitFeedResponse.xml
@@ -4,7 +4,7 @@
     <FeedSubmissionInfo>
       <FeedSubmissionId>string</FeedSubmissionId>
       <FeedType>string</FeedType>
-      <SubmittedDate>string</SubmittedDate>
+      <SubmittedDate>2008-09-28T17:49:45</SubmittedDate>
       <FeedProcessingStatus>string</FeedProcessingStatus>
       <!--Optional:-->
       <StartedProcessingDate>2008-09-28T18:49:45</StartedProcessingDate>
diff --git a/src/MarketplaceWebService/Samples/SubmitFeedSample.php b/src/MarketplaceWebService/Samples/SubmitFeedSample.php
index 9be88b4..5efa686 100644
--- a/src/MarketplaceWebService/Samples/SubmitFeedSample.php
+++ b/src/MarketplaceWebService/Samples/SubmitFeedSample.php
@@ -213,7 +213,7 @@ function invokeSubmitFeed(MarketplaceWebService_Interface $service, $request)
                         if ($feedSubmissionInfo->isSetSubmittedDate()) 
                         {
                             echo("                    SubmittedDate\n");
-                            echo("                        " . $feedSubmissionInfo->getSubmittedDate()->format(DATE_FORMAT) . "\n");
+                            echo("                        " . $feedSubmissionInfo->getSubmittedDate()->format('Y-m-d H:i:s') . "\n");
                         }
                         if ($feedSubmissionInfo->isSetFeedProcessingStatus()) 
                         {
@@ -223,12 +223,12 @@ function invokeSubmitFeed(MarketplaceWebService_Interface $service, $request)
                         if ($feedSubmissionInfo->isSetStartedProcessingDate()) 
                         {
                             echo("                    StartedProcessingDate\n");
-                            echo("                        " . $feedSubmissionInfo->getStartedProcessingDate()->format(DATE_FORMAT) . "\n");
+                            echo("                        " . $feedSubmissionInfo->getStartedProcessingDate()->format('Y-m-d H:i:s') . "\n");
                         }
                         if ($feedSubmissionInfo->isSetCompletedProcessingDate()) 
                         {
                             echo("                    CompletedProcessingDate\n");
-                            echo("                        " . $feedSubmissionInfo->getCompletedProcessingDate()->format(DATE_FORMAT) . "\n");
+                            echo("                        " . $feedSubmissionInfo->getCompletedProcessingDate()->format('Y-m-d H:i:s') . "\n");
                         }
                     } 
                 }