wsdl with overloaded operations

[aerinphp]

sadly i have a wsdl with same-name operations. I dont know how to call the one i want (getItemDetails_Simple version).

<wsdl:operation name="Get_ItemDetails">
  <soap:operation soapAction="http://www.notmywebsite.com/WebServices/getItemDetails_Simple" style="document"/>
  <wsdl:input name="getItemDetails_Simple">
</wsdl:input>
  <wsdl:output name="getItemDetails_Simple">
    <soap:body use="literal"/>
  </wsdl:output>
</wsdl:operation>
<wsdl:operation name="Get_ItemDetails">
  <soap:operation soapAction="http://www.notmywebsite.com/WebServices/getItemDetailsByStorePlus" style="document"/>
  <wsdl:input name="getItemDetailsByStorePlus">
    <soap:body use="literal"/>
  </wsdl:input>
  <wsdl:output name="getItemDetailsByStorePlus">
    <soap:body use="literal"/>
  </wsdl:output>
</wsdl:operation>
<wsdl:operation name="Get_ItemDetails">
  <soap:operation soapAction="http://www.notmywebsite.com/WebServices/getItemDetailsByStore" style="document"/>
  <wsdl:input name="getItemDetailsByStore">
    <soap:body use="literal"/>
  </wsdl:input>
  <wsdl:output name="getItemDetailsByStore">
    <soap:body use="literal"/>
  </wsdl:output>
</wsdl:operation>