Before you book
The Card at Checkout
A logo on the page is what you pay against. If the brand is not on the checkout in front of you, switch channel rather than retrying the same card.
12306
12306 commonly shows Visa
Pay only when the Visa logo is on the checkout you are about to use. A logo on the page is not a success rate, and this page does not store the card number.
What a checkout accepts changes with the app version, the language, and the bank that issued the card. If the logo is absent, use another channel instead of retrying the same card.
No published page listing logos by checkout is registered here, so this is what the app records and not a quoted rate.