diff --git a/src/DataMapper/EstPosRequestDataMapper.php b/src/DataMapper/EstPosRequestDataMapper.php
index 130809d6..a492f52b 100644
--- a/src/DataMapper/EstPosRequestDataMapper.php
+++ b/src/DataMapper/EstPosRequestDataMapper.php
@@ -261,6 +261,7 @@ public function create3DFormData(AbstractPosAccount $account, $order, string $tx
      */
     public function create3DFormDataCommon(AbstractPosAccount $account, $order, string $txType, string $gatewayURL, ?AbstractCreditCard $card = null): array
     {
+        
         $inputs = [
             'clientid'  => $account->getClientId(),
             'storetype' => $this->secureTypeMappings[$account->getModel()],
@@ -270,6 +271,7 @@ public function create3DFormDataCommon(AbstractPosAccount $account, $order, stri
             'failUrl'   => $order->fail_url,
             // musteri 3D onay sayfasinda islemleri tamamlamadan kapatirsa, banka bu sayfaya bir istek gonderecek.
             'callbackUrl' => $order->fail_url,
+            'refreshTime' => '10', //callbackUrl sisteminin doğru çalışması için eklenmesi gereken parametre
             'rnd'       => $order->rand,
             'lang'      => $this->getLang($account, $order),
             'currency'  => $this->mapCurrency($order->currency),
diff --git a/tests/DataMapper/EstPosRequestDataMapperTest.php b/tests/DataMapper/EstPosRequestDataMapperTest.php
index 06c4da8a..b1771a9e 100644
--- a/tests/DataMapper/EstPosRequestDataMapperTest.php
+++ b/tests/DataMapper/EstPosRequestDataMapperTest.php
@@ -322,6 +322,7 @@ public function testGet3DFormData()
             'okUrl'     => $this->order['success_url'],
             'failUrl'   => $this->order['fail_url'],
             'callbackUrl' => $this->order['fail_url'],
+            'refreshTime' => '10',
             'rnd'       => $this->order['rand'],
             'lang'      => 'tr',
             'currency'  => 949,
@@ -407,6 +408,7 @@ public function testGet3DHostFormData()
             'okUrl'     => $this->order['success_url'],
             'failUrl'   => $this->order['fail_url'],
             'callbackUrl' => $this->order['fail_url'],
+            'refreshTime' => '10',
             'rnd'       => $this->order['rand'],
             'lang'      => 'tr',
             'currency'  => '949',
@@ -525,6 +527,7 @@ public static function threeDFormDataProvider(): iterable
                     'okUrl'                           => 'https://domain.com/success',
                     'failUrl'                         => 'https://domain.com/fail_url',
                     'callbackUrl'                     => 'https://domain.com/fail_url',
+                    'refreshTime'                     => '10',
                     'rnd'                             => 'rand',
                     'lang'                            => 'tr',
                     'currency'                        => '949',
@@ -567,6 +570,7 @@ public static function threeDFormDataProvider(): iterable
                     'okUrl'                           => 'https://domain.com/success',
                     'failUrl'                         => 'https://domain.com/fail_url',
                     'callbackUrl'                     => 'https://domain.com/fail_url',
+                    'refreshTime'                     => '10',
                     'rnd'                             => 'rand',
                     'lang'                            => 'tr',
                     'currency'                        => '949',
diff --git a/tests/DataMapper/EstV3PosRequestDataMapperTest.php b/tests/DataMapper/EstV3PosRequestDataMapperTest.php
index 22168d8f..313bd006 100644
--- a/tests/DataMapper/EstV3PosRequestDataMapperTest.php
+++ b/tests/DataMapper/EstV3PosRequestDataMapperTest.php
@@ -95,13 +95,14 @@ public function testGet3DFormData()
             'callbackUrl'   => $this->order['fail_url'],
             'rnd'           => $this->order['rand'],
             'hashAlgorithm' => 'ver3',
+            'refreshTime'   => '10',
             'lang'          => 'tr',
-            'currency'      => 949,
+            'currency'      => '949',
             'TranType'      => 'Auth',
             'taksit'        => '',
         ];
 
-        $hash           = '7MGmDH2CY9jlFd4kVHwdvlyt07hIqkiBWVR8bkjAiaaRhK2XUHyvrDLqv0vlG6YY8bXChDkLfnDwVLi3Pvg5lQ==';
+        $hash           = '06DYVTzCUae0u99v6uO08kih+3ADmTkqbGYakt30kNQj+5Hrt26701fXWMS+TFrqtsU1ongDfukk9fjTq5mZTQ==';
         $inputs['hash'] = $hash;
         $form           = [
             'gateway' => $gatewayURL,
@@ -124,7 +125,7 @@ public function testGet3DFormData()
         $form['inputs']['cv2']                             = $card->getCvv();
 
         unset($form['inputs']['hash']);
-        $form['inputs']['hash'] = '7EgK2aMhS848ZMEkl2d0s1dFXlMhCy4LS5FFk+k/FbEmmVqBqx6TtQ1Yg7aW0KQa/5hrQODwBVT3SCUwfXHEsg==';
+        $form['inputs']['hash'] = 'jXlIRQn+vHyvQ9Byxk0v2pGGwnoBc1bPEJaYkcDNOq9JOn7MJr0+l5olODtjYy2KsHMZwjKWLpQevXVIHLtYyw==';
 
         $this->assertEquals($form, $this->requestDataMapper->create3DFormData(
             $this->pos->getAccount(),
@@ -167,6 +168,7 @@ public function testGet3DHostFormData()
             'callbackUrl' => $this->order['fail_url'],
             'rnd'       => $this->order['rand'],
             'hashAlgorithm' => 'ver3',
+            'refreshTime' => '10',
             'lang'      => 'tr',
             'currency'  => '949',
             'TranType'  => 'Auth',
@@ -178,7 +180,7 @@ public function testGet3DHostFormData()
             'inputs'  => $inputs,
         ];
 
-        $form['inputs']['hash']       = 'pxvr9oG9G6v2AU/Lci3qs7OiBAwcvAaLotG5rorJVe31DJN/wlVDReWpqFSJojTLPs6pPiS1L1U+QkE0dJJBKw==';
+        $form['inputs']['hash']       = 'vAxgy0o5YS3CdmqblwAOCuZTpNQ6p6XdhPn3WZqT3LfZoCf2un/Vhr+NlGV5yZiJZYZgZ8l20UAUfH+dhakKAA==';
 
         $this->assertEquals($form, $this->requestDataMapper->create3DFormData(
             $pos->getAccount(),
diff --git a/tests/DataMapper/ResponseDataMapper/EstPosResponseDataMapperTest.php b/tests/DataMapper/ResponseDataMapper/EstPosResponseDataMapperTest.php
index 98bcfc57..b5e3fb1a 100644
--- a/tests/DataMapper/ResponseDataMapper/EstPosResponseDataMapperTest.php
+++ b/tests/DataMapper/ResponseDataMapper/EstPosResponseDataMapperTest.php
@@ -737,7 +737,7 @@ public static function threeDHostPaymentDataProvider(): array
                     'firmaadi'                        => 'John Doe',
                     'islemtipi'                       => 'Auth',
                     'campaignOptions'                 => '000001',
-                    'refreshtime'                     => '300',
+                    'refreshTime'                     => '300',
                     'lang'                            => 'tr',
                     'merchantID'                      => '700655000200',
                     'maskedCreditCard'                => '4355 08** **** 4358',
@@ -823,7 +823,7 @@ public static function threeDHostPaymentDataProvider(): array
                     'firmaadi'                        => 'John Doe',
                     'islemtipi'                       => 'Auth',
                     'campaignOptions'                 => '000002',
-                    'refreshtime'                     => '300',
+                    'refreshTime'                     => '300',
                     'lang'                            => 'tr',
                     'merchantID'                      => '700655000200',
                     'maskedCreditCard'                => '4355 08** **** 4358',