antimsh

[limber pier]

hi!

1. No, checking an amount is not possible. Maybe look into auth-and capture instead(https://stripe.com/docs/payments/place-a-hold-on-a-payment-method) if that suits for the use case, instead of a SetupIntent
2. You can attempt multiple cards on the SetupIntent until one succeeds
3. no limit
4. you can only update expiration date/billing adress on an existing PaymentMethod. Otherwise you'd collect/set up a new object.