t Method" sortable="true" sortBy="#{bill.paymentMethod}" filterBy="#{bill.paymentMethod}" filterMatchMode="contains">                             
                                        <h:outputLabel value="#{bill.paymentMethod}" />
                                    </p:column>  

                                    <p:column headerText="Department" sortable="true" filterBy="#{bill.department.name}" filterMatchMode="contains">                             
                                        <h:outpu