Here are some detailed instructions regarding the VAT issues:
1 When in admin mode, go to Settings-> School Info and write the address of your company (seller).
2 When in admin mode, go to Financial --> Invoices set up, and give your company VAT number (Company VAT Number), the percentage of the VAT (Calculate VAT in invoices/receipts) and do not forget to check the "Display invoice details textarea" checkbox. Checking it, will reveal an extra textarea in the payment form, so that your learners can give their own VAT details. (second screenshot).
3 Below you can see a sample invoices/receipts if you follow the steps above.
4 Sales reports can be exported if you go to Sales -> Orders. This is where you can export all your sales and download users' invoices/receipts. Hover your mouse over the "Export data" topbar option, and click on the "Export as xls".