Create a refund
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
A unique identifier to track this operation. It must be between 12 and 255 characters in length.
12 - 255A unique identifier to prevent duplicate requests. It must be between 12 and 255 characters in length.
12 - 255A refund of a previously created charge
Amount of the refund
x >= 0.0112.34
ID of the charge to refund
Reason for the refund
duplicate, fraudulent, requested_by_customer, expired_uncaptured_charge "requested_by_customer"