Getting empty response for findCatalog wsdl

Hi,

From WSDL "ItemCatalogService" when i am trying to call findCatalog i am getting Empty response,

I have given request payload below which i am using .

<typ:findCatalog>

         <typ:findCriteria>

            <typ1:fetchStart>0</typ1:fetchStart>

            <typ1:fetchSize>50</typ1:fetchSize>

            <typ1:filter>

               <typ1:conjunction>And</typ1:conjunction>

               <typ1:group>

                  <typ1:conjunction>And</typ1:conjunction>

                  <typ1:upperCaseCompare>false</typ1:upperCaseCompare>

                  <typ1:item>

                     <typ1:conjunction>Or</typ1:conjunction>

                     <typ1:upperCaseCompare>true</typ1:upperCaseCompare>

                     <typ1:attribute>CatalogCode</typ1:attribute>

                     <typ1:operator>=</typ1:operator>

                     <typ1:value>PH_Catalog_Main_0.1</typ1:value>

                  </typ1:item>

               </typ1:group>

            </typ1:filter>

            <typ1:excludeAttribute>true</typ1:excludeAttribute>

         </typ:findCriteria>

         <typ:findControl>