Interesting thing is that there is no way (that I could find) to buy apps in AppStore for my VAT registered company in a way that I could receive invoice with company details and all necessities to be able to get VAT refund. They seem to pretend they are always selling to private persons and this is not necessary, yet there are many business apps and I am quite sure for business app VAT on 10,000 Eur app would hurt.

Apparently invoices can be obtained by contacting customer support.