Affirm and Klarna allow you to pay for your purchases in smaller payments over time. Affirm and Klarna are alternatives to credit and give you the flexibility to shop what you want, when you want, without breaking the bank. We accept Affirm Virtual Card or Klarna Virtual Card on Nalable. Enter your virtual card number at checkout, just like you would any other card. Affirm Virtual Card. Click here to learn more. Klarna Virtual Card. Click here to learn more.