Your bank will validate your payment to us in a number of ways; it generally happens behind the scenes, and you'll not notice anything, or they might display a window and ask you to input a code number which they'll text you, or use their app to generate (exactly how it happens depends on your bank).

This window is generated into our checkout by your bank - we can't see this window, don't know what details they will ask you, and can't see your response, we'll just get an approved or declined message.

If your card gets declined, we'd recommend making a second attempt, ensuring that you've entered the details correctly (such as the expiry or CV2 code) but we don't recommend trying multiple times.

Your bank will accept or reject your payment attempt, not us, so if you're having problems, we'd recommend calling them to advise you're trying to place an online order with a UK store, and they should then be able to approve it for you.