Please make sure your VAT number is valid within the EU. You can check the validity via the following link: https://ec.europa.eu/taxation_customs/vies/ If it is not valid, it cannot be applied.Make sure you have removed all spaces as well as special characters.You can send your business license and VAT ID number to vat@phiacademy.at and it will be saved in your profile.Should you still be experiencing technical issues, contact us via info@phishop.com.