How can I reach Klarna? Andrea | Nisolo March 08, 2021 22:43 Updated Follow You can reach Klarna 24/7 via chat or can call them at 844-552-7621. They are available by phone Monday to Friday: 8am - 6pm ET. You can also visit: https://www.klarna.com/us/customer-service/ Related articles What is Klarna? What is the Shoe Reclamation Program? What happens if I return my purchase? Is there a fee to pay later in 30 days or in 4 interest-free installments? Comments 0 comments Please sign in to leave a comment.