The service fee can either be paid once when the vehicle is handed over or in monthly installments. In both cases, you will receive the invoice for the service fee separately from the monthly invoices.
Option 1 - One-off payment: You will be invoiced for the total amount after the vehicle is handed over.
Option 2 - Payment in installments: The payment amount is added to your monthly invoice and automatically debited - you do not have to pay the invoice for the service fee separately.