What can I do if a retailer asked for the cards last four digits when using Apple Pay?

If they ask for the last four digits of the card number, you need to give them the last four digits of the Device Account Number. The device account number is static as long as the card remains in Apple Pay. If you remove and re-add the card, a new device account number will be assigned.

There are two ways to get to this information:

1. Settings (app) > Passbook & Apple Pay. Touch the card used for payment and look for the Device Account Number.
2. Passbook (app). Select the card used for payment and touch the information icon (i in a circle).

I have a related question. I have an iPhone 5S and an Apple Watch--of course I can only use Apple Pay with the Watch itself.

Since the phone alone doesn't support Apple Pay, There is no Settings>Passbook & Apple Pay. You also cannot view the cards in the Passbook app.

The only place to view the cards is within the Apple Watch App>Passbook & Apple Pay. However, when I get to the section of each card that says "Device Account Number" all it shows is 3 dots because the screen is narrower than the 6/6+ . It does not expand when that section is pressed, therefore I can't see a way to see those numbers AT ALL.

Any ideas?

I have an iPhone 6 and an Apple Watch, so I have not experienced your dilemma personally.

But if that happened to me, I would try using an Apple Pay retailer that does not ask for the last 4 digits (I have personally never been asked for them), and obtaining a printed receipt from that vendor. The receipt should show those last 4.

I figured out the answer on another forum post. Change the font size in your iPhone settings and the number will become visible. I did this temporarily so that I could write those numbers down in a secure note in 1Password. Then I changed the font size back to what I normally use.

thanks! This worked for me on iPhone 6 with iOS 9 🙂