diff --git a/src/Message/AbstractRedirectRequest.php b/src/Message/AbstractRedirectRequest.php
index 9fa8203..84d5763 100644
--- a/src/Message/AbstractRedirectRequest.php
+++ b/src/Message/AbstractRedirectRequest.php
@@ -43,7 +43,7 @@ public function getData()
         foreach ($this->optionalParams as $param) {
             $value = $this->getParameter($param);
 
-            if ($value !== '') {
+            if (!empty($value)) {
                 $data[$param] = $value;
             }
         }
diff --git a/src/Message/PurchaseRequest.php b/src/Message/PurchaseRequest.php
index 64c583c..ae2e911 100644
--- a/src/Message/PurchaseRequest.php
+++ b/src/Message/PurchaseRequest.php
@@ -16,5 +16,98 @@
 
 class PurchaseRequest extends AbstractRedirectRequest
 {
+    /**
+     * @var array
+     */
+    protected $optionalParams = array(
+        'useAlias',
+        'uppReturnMaskedCC',
+        'uppRememberMe',
+        'paymentMethod'
+    );
 
+    /**
+     * @return array
+     */
+    public function getData()
+    {
+        $data = parent::getData();
+
+        //set customer details if set
+        if (($customerDetails = $this->getParameter('uppCustomerDetails')) && is_array($customerDetails)) {
+            $data['uppCustomerDetails'] = 'yes';
+            foreach ($customerDetails as $key => $value) {
+                $data[$key] = $value;
+            }
+        }
+
+        // card data for prefilling redirect form
+        $this->addCardData($data);
+
+        return $data;
+    }
+
+    /**
+     * @param $value
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+    public function setUppReturnMaskedCC($value)
+    {
+        return $this->setParameter('uppReturnMaskedCC', $value);
+    }
+
+    /**
+     * @param $value
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+    public function setUseAlias($value)
+    {
+        return $this->setParameter('useAlias', $value);
+    }
+
+    /**
+     * @param $value
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+    public function setUppCustomerDetails($value)
+    {
+        return $this->setParameter('uppCustomerDetails', $value);
+    }
+
+    /**
+     * @param $value
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+    public function setUppRememberMe($value)
+    {
+        return $this->setParameter('uppRememberMe', $value);
+    }
+
+    /**
+     * enable functionality to prefill datatrans form in redirect mode
+     *
+     * @param $data
+     */
+    private function addCardData(&$data)
+    {
+        // rename paymentmethod if set
+        if (isset($data['paymentMethod'])) {
+            $data['paymentmethod'] = $data['paymentMethod'];
+            unset($data['paymentMethod']);
+        }
+
+        if ($card = $this->getCard()) {
+            if ($expMonth = $card->getExpiryMonth()) {
+                $data['expm'] = $expMonth;
+            }
+
+            if ($expYear = $card->getExpiryDate('y')) {
+                $data['expy'] = $expYear;
+            }
+
+            if ($number = $card->getNumber()) {
+                $data['aliasCC'] = $number;
+            }
+        }
+    }
 }
diff --git a/src/Message/XmlAuthorizationRequest.php b/src/Message/XmlAuthorizationRequest.php
index 6fd8f14..c116aff 100644
--- a/src/Message/XmlAuthorizationRequest.php
+++ b/src/Message/XmlAuthorizationRequest.php
@@ -26,7 +26,8 @@ class XmlAuthorizationRequest extends XmlRequest
      */
     protected $optionalParameters = array(
         'reqtype',
-        'uppCustomerIpAddress'
+        'uppCustomerIpAddress',
+        'useAlias'
     );
 
     /**
@@ -57,7 +58,7 @@ public function getData()
             'aliasCC'    => $this->getCard()->getNumber(),
             'expm'       => $this->getCard()->getExpiryMonth(),
             'expy'       => $this->getCard()->getExpiryDate('y'),
-            'useAlias' => 'no'
+            'useAlias'   => 'no'
         );
 
         foreach ($this->optionalParameters as $param) {
@@ -79,4 +80,13 @@ protected function createResponse($data)
     {
         return $this->response = new XmlAuthorizationResponse($this, $data);
     }
+
+    /**
+     * @param $value
+     * @return \Omnipay\Common\Message\AbstractRequest
+     */
+    public function setUseAlias($value)
+    {
+        return $this->setParameter('useAlias', $value);
+    }
 }
diff --git a/tests/Message/PurchaseRequestTest.php b/tests/Message/PurchaseRequestTest.php
index e62f5e6..e3cd939 100644
--- a/tests/Message/PurchaseRequestTest.php
+++ b/tests/Message/PurchaseRequestTest.php
@@ -30,7 +30,9 @@ public function testGetDataWithoutCard()
             'transactionId' => '123',
             'returnUrl' => 'https://www.example.com/success',
             'errorUrl' => 'https://www.example.com/error',
-            'cancelUrl' => 'https://www.example.com/cancel'
+            'cancelUrl' => 'https://www.example.com/cancel',
+            'uppReturnMaskedCC' => 'yes',
+            'useAlias' => ''
         ));
 
         $expected = array(
@@ -41,7 +43,8 @@ public function testGetDataWithoutCard()
             'sign' => '123',
             'successUrl' => 'https://www.example.com/success',
             'errorUrl' => 'https://www.example.com/error',
-            'cancelUrl' => 'https://www.example.com/cancel'
+            'cancelUrl' => 'https://www.example.com/cancel',
+            'uppReturnMaskedCC' => 'yes'
         );
 
         $this->assertEquals($expected, $this->request->getData());
diff --git a/tests/Mock/XmlAuthorizationAliasSuccess.txt b/tests/Mock/XmlAuthorizationAliasSuccess.txt
new file mode 100644
index 0000000..2628a18
--- /dev/null
+++ b/tests/Mock/XmlAuthorizationAliasSuccess.txt
@@ -0,0 +1,40 @@
+HTTP/1.1 200 OK
+Expires: Sat, 6 May 1995 12:00:00 GMT
+Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
+Pragma: no-cache
+P3P: CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"
+Strict-Transport-Security: max-age=15768000; includeSubdomains
+X-XSS-Protection: 1; mode=block
+Content-Type: text/xml;charset=UTF-8
+Content-Length: 1091
+Date: Tue, 10 Jan 2017 14:45:02 GMT
+Server: -
+
+<?xml version='1.0' encoding='UTF-8'?>
+<authorizationService version='3'>
+  <body merchantId='TEST-TOKEN-123' status='accepted'>
+    <transaction refno='1' trxStatus='response'>
+      <request>
+        <amount>10000</amount>
+        <currency>CHF</currency>
+        <aliasCC>13820602628130529</aliasCC>
+        <uppReturnMaskedCC>yes</uppReturnMaskedCC>
+        <expm>12</expm>
+        <expy>18</expy>
+        <useAlias>no</useAlias>
+        <sign>TEST-SIGN-123</sign>
+        <reqtype>NOA</reqtype>
+      </request>
+      <response>
+        <responseCode>01</responseCode>
+        <responseMessage>Authorized</responseMessage>
+        <uppTransactionId>44E89981F8714392Y</uppTransactionId>
+        <authorizationCode>123</authorizationCode>
+        <acqAuthorizationCode>123</acqAuthorizationCode>
+        <maskedCC>490000xxxxxx0086</maskedCC>
+        <returnCustomerCountry>CH</returnCustomerCountry>
+        <aliasCC>13820602628130529</aliasCC>
+      </response>
+    </transaction>
+  </body>
+</authorizationService>
\ No newline at end of file
diff --git a/tests/XmlGatewayTest.php b/tests/XmlGatewayTest.php
index d21fc69..fe16640 100644
--- a/tests/XmlGatewayTest.php
+++ b/tests/XmlGatewayTest.php
@@ -50,6 +50,26 @@ public function testAuthorize()
         $this->assertEquals('Authorized', $response->getMessage());
     }
 
+    public function testAuthorizeAlias()
+    {
+        $this->setMockHttpResponse('XmlAuthorizationAliasSuccess.txt');
+
+        $this->options = array_merge($this->options, array(
+            'useAlias' => 'yes',
+            'uppReturnMaskedCC' => 'yes'
+        ));
+
+        $response = $this->gateway->authorize($this->options)->send();
+
+        $this->assertTrue($response->isSuccessful());
+        $this->assertEquals('Authorized', $response->getMessage());
+
+        //check for alias and masked cc
+        $data = $response->getData();
+        $this->assertEquals('13820602628130529', $data['response']['aliasCC']);
+        $this->assertEquals('490000xxxxxx0086', $data['response']['maskedCC']);
+    }
+
     public function testPurchase()
     {
         $this->setMockHttpResponse('XmlAuthorizationSuccess.txt');