The installment payment with us is processed via Klarna. Klarna also offers 0% financing over three months in Italy, Spain and France. Just select "3 interest-free payments". That's how it's done:
When completing your order, select the "Klarna" option in the "Payment" step:
Now click on "Buy" below. In the next step you can choose to pay in installments.
Now click on "Buy now" and follow Klarna's instructions. Complete!