If you are using Klarna, they will send you a payment confirmation to the email address that you have used for your order.
If you have made a payment but not received the payment confirmation, you can always check the status of your order and payments by logging in on the Klarna site - https://www.klarna.com/uk/

If you have further queries on your payments, please reach out to Klarna's Customer Support Team directly- https://www.klarna.com/uk/customer-service/