public function cleanAuthXml($xml)
        {
             $xml = preg_replace('#(\<(?:Encrypted)?CardSecurityCode\>).*(\</(?:Encrypted)?CardSecurityCode\>)#', '$1***$2', $xml);
             $xml = preg_replace('#(\<(?:Encrypted)?PaymentAccountUniqueId.*?\>).*(\</(?:Encrypted)?PaymentAccountUniqueId\>)#', '$1***$2', $xml);
             $xml = preg_replace('#(\<(?:Encrypted)?AccountID.*?\>).*(\</(?:Encrypted)?AccountID\>)#', '$1***$2', $xml);
             return $xml;
        }