3D Secure: Choose card to pay with

It would be really nice if Curve’s 3d secure flow allowed you to choose which underlying card to use for the payment, instead of having to select the card in the app beforehand.

This is similar to what Amex does - after you’ve authenticated with your 3d secure code, you get the option of choosing to pay with points before being returned to the merchant’s website.

This could be implemented either in the Web flow after authentication, like with Amex, or in the Curve app when approving the payment. Instead of having just a “confirm payment” button, there could also be a drop down menu for which card to use for that payment.