Why can I not pay with Klarna? There can be various reasons why you are not allowed to use Klarna. For the sake of your privacy, we unfortunately do not have insight into this, and therefore ask you to contact Klarna. Related articles How can I pay for my order? How do I postpone the due date on my Klarna invoice? Where do I find my Klarna invoice? Klarna Invoice - Can you send me a new invoice? Where are the orders sent from?