How do I register my return with Klarna? Klarna provides the possibility to register your return in their app or via https://app.klarna.com/login/ in order to pause your invoice. Once we have received and processed your return, the invoice will be updated automatically. Related articles How do I return my order? Are delivery charges refunded? When will I receive my refund? I want to exchange an item to a different colour or size. My goods are damaged or faulty. What is your warranty policy?