You can pay at any time within 30 days of your purchase, without interest or fees if you pay on time. All you have to do is open the Klarna App or log into https://www.klarna.com/uk/, and pay using a credit or debit card.
Once your order is confirmed, Klarna will send you an email with the full details. You can also see both past and future payments on the Klarna App.
Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Late fees may apply. Ts&Cs apply.