I made a post recently about MST not working with Walmart. Today tried making a purchase using MST at The Home Depot and it too failed. Had to resort to using the physical CC. CC tap is working fine.
I am not sure if NFC is interfering with MST since the NFC signal is stronger and therefore the terminal is recognizing the NFC attempt instead?
I had the same problem at Walmart. I spoke to a Walmart representative, and they have disabled almost all NFC & MST transactions on their point-of-sale system. They did this, because they want their customers to use their Walmart app to pay for purchases. They want the exclusivity up there Walmart app. So as of now, you can't use Samsung pay at Walmart.
I know this is an old post but just in case someone didn't mention it, Walmart stopped Samsung pay in favor of their own Walmart pay within the Walmart app, it **bleep** but it is what it is.
