Hasn’t work for any of my 4 cards sadly. Just tells me to call. What do you mean use phone mobile data?If you go to card management and use phone mobile data and go to track card , you may have option to show card details - can screen shot them and add to Apple Pay - worked for me for 2 cards
Ok. Tried that and no go. I’m on iOS though. Will try on my pixeldidnt work initially when i tried on wifi but turning off wifi and using on phone with mobile data it worked