[UBL-SR-47]-When there are more than one payment means code, they shall be equal
UBL-SR-47pxs-taxdata:TaxData/pxs-taxdata:ReportedTransaction/pxs-taxdata:ReportedDocumentcount(//cbc:PaymentMeansCode[not(preceding::cbc:PaymentMeansCode/. = .)]) <= 1