I just got an Apple Card and wanted to use it for my T-Mobile autopay bill through ApplePay. The option is there. I choose it, choose the card, double tap power button, then it processes and says “payment was not successful” and then I get a screen on the T-Mobile app stating there was a technical issue and to try again later. I then get a notification from Wallet stating I have a new pending charge from Apple of $0.01. Every single time I try to set it up. T-Mobile business iMessage support had no idea what was wrong, gave me a credit for the issue and said to try again.