Apple pay virtual debit card number

Recently, I tried to buy something off of amazon with my apple pay virtual visa debit card. However, I cannot view it on my apple wallet. I know of the existence and some of the digits of this card from receipts when I used apple pay. Where can I get the remaining digits of the virtual debit card? I know that there are some machines that tell you the card number when you scan it, but I don't know where to find one. If there is another method to finding out the card number, I would also be happy to try it.