[UBL-CR-307]-A UBL invoice should not include the TaxRepresentativeParty PostalAddress Postbox
UBL-CR-307
pxs-taxdata:TaxData/pxs-taxdata:ReportedTransaction/pxs-taxdata:ReportedDocument
not(cac:TaxRepresentativeParty/cac:PostalAddress/cbc:Postbox)