1. Find an email titled "Your Progressier receipt" in your email inbox and click on the View Receipt button to open your invoice in a new browser tab.
2. In the top-left corner, click on "Add address & VAT Number". Note that you may not be able to do this if the invoice is older than 30 days old.
3. All subsequent invoices in the same subscription will have your billing address and VAT number already filled out. If you'd like, you can also download your invoice as a PDF file.