                                            value="To Refund Fees"
                                            rendered="#{configOptionApplicationController.getBooleanValueByKey('Refund Allow for OPD Bill',true)}"
                                            disabled="#{billSearch.bill.cancelled or billSearch.bill.refunded}" 
                                            action="#{billSearch.navigateToRefundOpdBill}" 
                                            class="ui-button-help m-1 w-25" 
                