Sorry about that! The decline notification tells you the reason. Here are the most common ones:
Not enough money on the card. Your card has its own US dollar balance, separate from the rest of your account. Top it up and try again.
Over the card limit. Your card has a limit per payment and per day.
The shop asked for a confirmation code, and it wasn't entered in time. Try again, and enter the code from the app notification.
Still not sure what happened? Don't hesitate to contact our support.