Cancel Refund

{
  "message": "Cancellation requested",
  "id": "9f2a0a7c-0d4e-4d1e-bb0c-2b7f1c9f0a12",
  "status": "PENDING_CANCEL"
}

{
  "code": "unauthorized",
  "message": "Invalid or missing Swich-API-Key",
  "details": null
}