i had an iPhone 7 with an American Express setup and if I used Apple Pay with that credit card or if I used the actual physical card, I would get a pop up notification on my phone. Now on my iPhone X with iOS 11.2 I am not getting any notifications when I use the same physical card. I have verified I have notifications enabled for wallet. Anyone else seeing this issue? I tried rebooting phone, added another card, reset carrier settings. No resolution.