     </td>
                                <td  rowspan="#{r.billItems.size() + 1}">
                                    <h:outputText value="#{r.referenceBill.createdAt}"  >
                                        <f:convertDateTime pattern="#{sessionController.applicationPreference.longDateTimeFormat}" />
                                    </h:outputText>
                                </td>
                                <td  rowspan="#{r.billItems.size() + 1}">
                                    <h: