Fortum Power and Heat Oy, Heat Business ID 0109160-2 VAT number FI01091602 E-invoices e-Invoice operator BAWCFI22 e-Invoice address 003701091602900C PDF invoices Fortum.FI900C [at] bscs.basware.com Paper invoices Purchase invoices (900C) PL 749 00026 BASWARE Finland