PEPPOL-EN16931-R044

Explanation

Only a discount may be applied to the item price itself (gross price minus discount gives the net price), not a surcharge. A surcharge belongs on the line or on the whole invoice as a charge.

How to fix

Ask the seller for a corrected invoice that shows the surcharge as a charge on the line instead of in the item price. This usually comes from the seller's invoicing software, not from data entry.