1st customer purchase declined x 2

[kkennard]

Can anyone help me with why my first use with contactless chip reader declined my customer purchase?

[Helen]

I'm sorry to hear that your first payment with your new reader was declined @kkennard! Unfortunately, card-issuing banks don't tell Square the exact reason a card is declined. You'll simply see a message in the app stating the card was declined (all of the declined card messages are listed here).

If your customer contacts their card-issuing bank, the bank will be able to tell them why the payment was declined so you can re-attempt the card payment.