Hafslund Oslo Celsio AS Business ID 977296919 VAT number NO977296919MVA E-invoices e-Invoice operator BAWCFI22 e-Invoice address NO9772969199762 Peppol ID 9908:977296919 PDF invoices Fortum.NO9762 [at] bscs.basware.com Paper invoices Purchase invoices (9762) Postboks 32 Økern 0508 Oslo Norway