curl --request POST \
  --url http://dev-cn.your-api-server.com/card/refund \
  --header 'Content-Type: application/json' \
  --data '
{
  "merchantRefundNo": "<string>",
  "powerCardId": "<string>",
  "refundAmount": 123,
  "toTransferBalance": 123,
  "toTransferRefundAmount": 123
}
'

{
  "success": false,
  "errorCode": "",
  "errorMessage": "",
  "errorMessageEn": "",
  "detailMessage": "",
  "requestId": "",
  "data": {
    "merchantRefundNo": "",
    "powerCardRefundNo": "",
    "refundAmount": 0,
    "receivedAmount": 0,
    "status": "",
    "balance": 0
  }
}