Payment in 3 installments

Klarna
Select "Payment with Klarna" at checkout and proceed by clicking on the Klarna button at the time of payment.
From the Klarna page then follow the instructions to complete the payment in installments. 

PayPal
If you have a PayPal account and you choose PayPal as your payment method at the time of purchase, you can pay in 3 interest-free installments.
Select "Payment by Card or PayPal" at checkout and proceed by clicking on the PayPal button at the time of payment.
From the PayPal window then follow the instructions to complete the payment in installments.

ScalaPay
Select "Payment with ScalaPay" at checkout and proceed by clicking on the ScalaPay button at the time of payment.
From the ScalaPay page then follow the instructions to complete the payment in installments.