> So then what happens if some people's payment method fails once you do charge?
I expect its a pre-auth, like car rental companies do; a pre-auth gives you a code from the card issuer and an expiry. The issuer will reserve the amount on the cardholders account, and only perform the transaction to the merchant once the merchant sends a second message with the pre-auth code.
I expect its a pre-auth, like car rental companies do; a pre-auth gives you a code from the card issuer and an expiry. The issuer will reserve the amount on the cardholders account, and only perform the transaction to the merchant once the merchant sends a second message with the pre-auth code.