When you sell products or services in Europe to individuals, it's normal that you're adding VAT.
But when selling to registered companies, you should be selling without VAT and provide an invoice with the customer's VAT number on it. This number can be verified with a SOAP web service on the European Commission website. I can provide the details if you're interested.
But adding VAT and only offering a simple receipt without my VAT number is just not acceptable. Heck, you even have separate business and individual stores !
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