I paid my order/purchase directly and still received an invoice by email.

You will automatically receive an invoice once you have completed your order. Please note, that the payment slip should not be used for payment according to the "additional information". If you have already paid for your order using TWINT or a credit card, the QR code for payment is no longer valid. You can simply ignore this invoice. If you have any questions, please do not hesitate to contact us.