What does it mean when a customer taps their card and the interface displays a “Try a Different Card” or “Unable to Read Card” error?

This means that the customer is using a contactless card that we do not support. For example, an international customer may have a card that isn’t widely accepted outside their region. Surfboard Payments determines which cards to accept in their Tap to Pay on iPhone configuration.

You can learn more about what card types we are accepting here