Customer related cases

What do we do when we receive a customer email sent from the Klarna app? | Why did we receive an email from the customer that wasn’t sent from their private email address? | When is the customer refunded? | Can I remove a customer’s late fee? | What happens when the customer makes a return? | Why can’t the customer complete their purchase? | How do I change a customer’s billing address? | How do we reply when the customer asks about their remaining account balance?