This idea has been merged into another idea. To comment or vote on this idea, please visit MXM-I-156 Update UI to reflect AVS not supported response from CAPI.
Currently we only display match or mismatch for AVS response on all cards, we have been advised by devs that AMEX has a 3rd response which is (does not participate in AVS verification).
Currently we display that as mismatch which is causing some merchants to questions card holders unnecessarily.