blackgirlstradetoo

[worldly bear]

hey there -- you can inspect the card brand o the payment method card details and inform your customer they need to use another if thats what you want to do:
https://stripe.com/docs/api/payment_methods/object#payment_method_object-card-brand

How are you integrated currently?

It's also possible to put rules in place via Radar, for example: https://stripe.com/docs/radar/rules/reference#valid-conditions (card_brand checks)

And if you're using the card element, you can get the brand in change events to provide UI guidance to customers:
https://stripe.com/docs/js/element/events/on_change?type=cardElement#element_on_change-handler-brand

So it depends on how you're integrated, and exactly what you want to do