We simply accept prepayment by bank transfer and PayPal.
After order you can chose if you wanna get an invoice and pay by bank transfer, or pay by PayPal. In case of an PayPal payment, you will get the invoice with the product. Banking information will be supplied within the invoice.
If you have an european VAT number, you can buy without 19% German tax. Also swiss clients do not have to pay 19″ German tax.