[Please assist with a NuSoap issue.]

I am having a huge headache.  I am doing this in SoapUI:

DESIRED CALL / REQUEST
 

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:own="www.ownyourliferewards.co.za" xmlns:own1="http://schemas.datacontract.org/2004/07/OwnYourLife.WebServices.WebServicesBase" xmlns:own2="http://schemas.datacontract.org/2004/07/OwnYourLife.WebServices.Generic.DataObjects">
       <soapenv:Header/>
       <soapenv:Body>
          <own:AuthenticateMember>
             <!--Optional:-->
             <own:request>
                <!--Optional:-->
                <own1:SecurityToken>9415CD31-0C7E-40AB-A45F-D3538B98B96B</own1:SecurityToken>
                <!--Optional:-->
                <own2:MembershipNumber>200803407801</own2:MembershipNumber>
             </own:request>
          </own:AuthenticateMember>
       </soapenv:Body>
    </soapenv:Envelope>

I am doing the following in PHP and Nusoap:

   

<?php
    require_once('nusoap.php');
    $client = new nusoap_client('https://integrationqa.ownyourliferewards.co.za/RTService.svc?wsdl' 'wsdl');
    $client->soap_defencoding='utf-8';
    $err = $client->getError();
    
    if ($err) {
        echo '<h2>Constructor error</h2><pre>' . $err . '</pre>';
    }
    
    $param = array('request'=> array('MembershipNumber' => '200803407801', 'SecurityToken' => '9415CD31-0C7E-40AB-A45F-D3538B98B96B' ));
    $result = $client->call('AuthenticateMember', $param, '', '', $header );
    if ($client->fault) {
        echo '<h2>Fault</h2><pre>';
        print_r($result);
        echo '</pre>';
    } else {
        // Check for errors
        $err = $client->getError();
        if ($err) {
            // Display the error
            echo '<h2>Error</h2><pre>' . $err . '</pre>';
        } else {
            // Display the result
            echo '<h2>Result</h2><pre>';
            print_r($result);
            echo '</pre>';
        }
    }
    echo '<pre>' . htmlspecialchars($client->request, ENT_QUOTES) . '</pre>';

WHAT I AM GETTING WITH THE ABOVE CODE:

   

<?xml version="1.0" encoding="utf-8"?>
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
        <SOAP-ENV:Body>
            <AuthenticateMember xmlns="www.ownyourliferewards.co.za">
                <request>
                    <MembershipNumber>200803407801</MembershipNumber>
                    <SecurityToken>9415CD31-0C7E-40AB-A45F-D3538B98B96B</SecurityToken>
                </request>
            </AuthenticateMember>
        </SOAP-ENV:Body>
    </SOAP-ENV:Envelope>

As you can see, there are some important bits missing.

1) The `own:`, `own1:`, and `own2:` "namespaces" (if that is what they are) are missing.

2) There is no header as per the desired example.

Any kind of fix or workaround will be sincerely appreciated.