Fat Zebra provides a facility to issue refunds.

Refund

Response format

Field	Type	Description
`authorization`	String	Authorization number
`id`	String	ID of the refund
`amount`	Integer	Amount of the refund in the smallest currency unit (e.g., 100 to refund $1.00, or 100 to refund ¥100, a zero decimal currency)
`refunded`	String	Status of the refund
`message`	String	Message giving context to the outcome of the request
`card_holder`	String	Card holder name
`card_number`	String	Obfuscated card number
`card_expiry`	String / Date YYYY-MM-DD	Card expiry date
`card_type`	String	Branding of the card
`transaction_id`	String	Identifier for the transaction used to perform the refund
`reference`	String	Identifier for the refund
`currency`	String / ISO 3	Currency of the purchase
`successful`	Boolean	Whether the operation was successful or not
`transaction_date`	String	Date the transaction was created
`response_code`	String	Response code received from the switch
`settlement_date`	String / Date YYYY-MM-DD	Settlement date
`metadata`	Object	Metadata for the refund
`standalone`	Boolean	Whether the refund was issued without reference to a previous purchase
`rrn`	String	Receipt number of the purchase
`merchant_advice_code`	String	Advice code for how merchants should retry failed transactions. Only present when a transaction is declined. Details on the possible codes are documented Merchant Advice Codes (Retries)