It is now possible to add VAT ID numbers to future receipts in the app. It is important to note, that it will only apply to future receipts. It is not possible to add to existing receipts.
We have made a user guide on our private help center, that describes how it works and how the user can add this in their own app. The VAT ID's is applicable on each added credit card in the app.
Link to help center article here: Guide for adding a VAT ID in the app.
This is used by freelancers or small business users, that DO NOT have an existing agreement with a Spirii partner.