How do I add my card to Apple pay Wallet?

Question

iOS

Good night, I have a question. I ran into a problem, so I have a phone, an iPhone. As you might guess, it has contactless payment. Approaching the terminal, you chose a card in the phone - you paid for the purchase.
But now the question is how to identify your payment card in the Apple pay wallet system and is it possible. If yes, then I will be glad to advice (please do not throw tomatoes as they usually do here, I ask for practical advice ... on solving the problem)
As I understand it, Google poked at it. Do I need to use PassKit for this purpose?
But how to deal with it?

Answer 1

Go to your bank application (namely, the bank must support apple pay) and look for the icon for adding a card to Wallet

Answer 2

This is mainly for discount and bonus cards.