In Europe we offer payment by invoice, part-payments, debit card payments and direct payment in partnership with Klarna. In the US we are currently only able to offer payment by credit/debit card.
The full terms for Klarna Checkout can be found here: http://cdn.klarna.com/1.0/shared/content/legal/terms/Klarna/en_gb/checkout
The invoice will be sent out separately via email when the order is despatched from us. The credit period for the invoice is 14 days. More information and full terms for Klarna's payment method can be found at Klarna.com or by contacting Klarna's customer service by telephone on +46 (0)8-120 120 10.
If you choose to use PayPal you can use their app, or see more information here: