How do I void or refund an EMV transaction?
Voids and refunds are the same for EMV as they are for magnetic stripe transactions.
You can only void transactions that are part of an open batch. When you close the current batch, any voids are not transferred to your account from the customer’s account.
You can only refund transactions that are part of a closed batch. When you refund a transaction, the value of the transaction leaves your account the next time you close the current batch.