We are looking to add ApplePay to our website and we have an odd use case, I'm looking for the best way to handle it. We offer discount & free tickets to local customers. Currently we check the billing zip code the user enters on the checkout page to verify they qualify for the discount, then rely on AVS to validate. However, with ApplePay, I'm not sure we have access to the billing zipcode at this point in the transaction. I'm looking for a way to replicate this verification. I know that there is an option for a shipping address check, but given that we don't ship anything, the user could enter anything they want there. Is there a way to mandate the shipping and billing address match? Is there an opportunity to authorize the transaction, use the AVS there, then update the cart & price before charging? Any help would be appreciated.