Invoicing takes place following acceptance of your order. Payments are due immediately and in advance without deduction. You save 240 euros with a yearly payment. If you company is located in German or Austria, and you have agreed upon monthly payments upon conclusion of the contract, this requires a SEPA direct debit mandate to be issued, incl. a monthly fee of 20 euros. Do you have any questions concerning "invoices?" If so, feel free to contact our Customer Care at info@wlw.com.