Not Able to Rerender Outputpanel/Pageblocksection on Save action.
Please advise on this -

<apex:page standardcontroller="RAQ_Header__c" extensions="myRAQExtension">
    <apex:pagemessages />
    <apex:form > 
      <apex:pageBlock >         
    <apex:pageBlockSection title="Contract Identification" columns="2">
           <apex:inputField value="{!RAQ_Header__c.name}"/>
          <apex:inputField value="{!RAQ_Header__c.Review_Status__c}"/>
           <apex:inputField value="{!RAQ_Header__c.Opportunity__c}"/>
   
          </apex:pageBlockSection>
       <apex:pageBlockSection columns="1">  
<apex:variable var="rowNum" value="{!0}"/> 
   
    <apex:pageBlockTable value="{!Quests}" var="Quest">
      <apex:column headerValue="Sr No.">
                     <apex:variable var="rowNum" value="{!rowNum + 1}"/>
                     {!rowNum}
                 </apex:column>
      <apex:column value="{!Quest.Question__c}"/>
       <apex:column headerValue=" Your Answer"><apex:inputfield value="{!Quest.Select_Answer__c}"/></apex:column>
       <apex:column headerValue="Comment"><apex:inputfield value="{!Quest.Comment__c}"/> </apex:column>
    </apex:pageBlockTable> 
    </apex:pageBlockSection>
           <apex:pageBlockSection title="Allocate Transaction Price" columns="3">
           <apex:inputField value="{!RAQ_Header__c.Total_License_Fees_Contract__c}"/>
           <apex:inputField value="{!RAQ_Header__c.Total_License_Fees_Retail_List__c}"/>
           <apex:inputField value="{!RAQ_Header__c.Revenue_Recognition_Method__c}" />
          </apex:pageBlockSection><br/>
         <apex:outputPanel id="Refresh">
            
          <apex:pageBlockSection columns="5" id="xy">
              <apex:outputText style="font-weight:600" value="Performance Obligation"/>
              <apex:outputText style="font-weight:600" value="Stated Value"/>
              <apex:outputText style="font-weight:600" value="SSP Range"/>
              <apex:outputText style="font-weight:600" value="SSP Estimate"/>
              <apex:outputText style="font-weight:600" value="Allocated Value"/>
              <apex:outputText style="font-weight:600" value="Perpetual License"/>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Perpetual_License_Stated_Value__c}"/></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem helpText="Please enter account name"><apex:inputText title="Provide a minimum/maximum discount range for this item. For example Perpetual license - 95% off of list minimum to 525% of list maximum" value="{!RAQ_Header__c.Perpetual_License_SSP_Range__c}"></apex:inputText></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Perpetual_License_SSP_Estimate__c}"/></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Perpetual_License_Allocated_Value__c}"/></apex:pageBlockSectionItem>
              <apex:outputText style="font-weight:600" value="Maintenance"/>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Maintenance_Stated_Value__c}"/></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem ><apex:inputText title="Provide a minimum/maximum discount range for this item. For example 'Perpetual license - 95% off of list minimum to 525% of list maximum'" value="{!RAQ_Header__c.Maintenance_SSP_Range__c}"/></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Maintenance_SSP_Estimate__c}"/></apex:pageBlockSectionItem>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Maintenance_Allocated_Value__c}"/></apex:pageBlockSectionItem>
              <apex:outputText value=""/>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Total_Stated_Value__c}"/></apex:pageBlockSectionItem>
              <apex:outputText value=""/>
              <apex:pageBlockSectionItem ><apex:inputField value="{!RAQ_Header__c.Total_SSP_Estimate__c}"/></apex:pageBlockSectionItem>
              <apex:outputText value=""/>
              <apex:outputText value=""/>
              <apex:outputText style="font-weight:700" value="Total Stated Value"/>
              <apex:outputText value="" />
              <apex:outputText style="font-weight:700" value="Total SSP Estimate"/>
              <apex:outputText value=""/>          
          </apex:pageBlockSection>
           
          </apex:outputPanel>
<apex:pageblockbuttons >        
<div align="right" draggable="false" class="slds-button-group" role="group">
   
    <apex:commandButton styleclass="btn btn-primary" Action="{!Save}" value="Save" rerender="Refresh" />
       <apex:commandButton styleclass="btn btn-primary" Action="{!Cancel}" Value="Cancel"/>
                   
       </div>
          </apex:pageblockbuttons>
          </apex:pageBlock>
             </apex:form>  
</apex:page>


Thanks in Advance