Description:
------------
Im trying to create a request in SOAP client,  I put the parameters in the 
correct order. When I consume the client an get the last request I send, some 
tags from xml request not appears.   

In the wsdl definition have a complex type where inside have this.

<xs:complexType name="general_name">
      <xs:complexContent>
         <xs:extension base="xrsi:name_type_base">
		<xs:sequence>
		   <xs:element minOccurs="0" name="name_raw" type="xrsi:name_raw"/>
	           <xs:element minOccurs="0" name="name_prefix" type="xrsi:name_prefix"/>
		   <xs:group minOccurs="0" ref="xrsi:name_group"/>
		   <xs:element minOccurs="0" name="name_suffix" type="xrsi:name_suffix"/>
		   <xs:element minOccurs="0" name="secondary_given_name" type="xrsi:first_name"/>
		   <xs:element minOccurs="0" name="secondary_paternal_name" type="xrsi:paternal_name"/>
		   <xs:element minOccurs="0" name="secondary_maternal_name" type="xrsi:maternal_name"/>
	        </xs:sequence>
	</xs:extension>
      </xs:complexContent>
	
</xs:complexType>
	<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  -->
	<xs:group name="name_group">
		<xs:choice>
			<xs:group minOccurs="0" ref="xrsi:individual_name"/>
			<xs:group minOccurs="0" ref="xrsi:organization_name"/>
			<xs:group minOccurs="0" ref="xrsi:mexican_name"/>
		</xs:choice>
	</xs:group>
	<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  -->
	<xs:group name="individual_name">
		<xs:sequence>
			<xs:element minOccurs="0" name="first_name" type="xrsi:first_name"/>
			<xs:element minOccurs="0" name="middle_name" type="xrsi:middle_name"/>
			<xs:element minOccurs="0" name="last_name" type="xrsi:last_name"/>
		</xs:sequence>
	</xs:group>
	<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  -->
	<xs:group name="mexican_name">
		<xs:sequence>
			<xs:element minOccurs="0" name="given_name" type="xrsi:first_name"/>
			<xs:element minOccurs="0" name="paternal_name" type="xrsi:paternal_name"/>
			<xs:element minOccurs="0" name="maternal_name" type="xrsi:maternal_name"/>
		</xs:sequence>
	</xs:group>
	<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  -->
	<xs:group name="organization_name">
		<xs:sequence>
			<xs:element minOccurs="0" name="business_name" type="xrsi:business_name"/>
			<xs:element minOccurs="0" name="attention" type="xrsi:attention"/>
		</xs:sequence>
	</xs:group>


The problems is when i try to choose the 2nd or 3rd group of element, not appear 
in the xml request.  





Test script:
---------------
<?php 

$client = new SoapClient('wsdl',array('trace'=>1);
$params = array('receiver'=>array('name'=>array('name_type'=>'M','given_name'=>'SAUL','paternal_name'=>'AQUINO', 'maternal_name'=>'CONCEPCION')));
$client->ReceiveMoneyPay($params);
$client->__getLastRequest();

Expected result:
----------------
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:ns1="http://www.westernunion.com/schema/xrsi"><SOAP-ENV:Body><ns1:receive-
money-pay-request>
<receiver>
   <name name_type="M">
      <given_name>SAUL</given_name>
      <paternal_name>AQUINO</paternal_name>
      <maternal_name>CONCEPCION</maternal_name>
   </name>
</ns1:receive-money-pay-request></SOAP-ENV:Body></SOAP-ENV:Envelope>

Actual result:
--------------
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" 
xmlns:ns1="http://www.westernunion.com/schema/xrsi">
<SOAP-ENV:Body>
<ns1:receive-money-pay-request>
<receiver>
    <name name_type="M"/>
</ns1:receive-money-pay-request>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>