Card associated with this unlinked refund transaction.
OptionalcurrencyThe currency of the unlinked refund. If not provided, defaults to the currency of the card. Three-letter ISO currency code, in lowercase. Must be a supported currency.
OptionalexpandSpecifies which fields in the response should be expanded.
Optionalmerchant_Details about the seller (grocery store, e-commerce website, etc.) where the card authorization happened.
Optionalpurchase_Additional purchase information that is optionally provided by the merchant.
The total amount to attempt to refund. This amount is in the provided currency, or defaults to the cards currency, and in the smallest currency unit.