curl --location 'https://api.trustpay.money/v4/order/refund' \
--header 'Content-Type: application/json' \
--data '{
"order_no": "string",
"merchant_refund_no": "string",
"refund_amount": 0,
"reason": "string",
"sign": "string"
}'{
"code": 0,
"message": "string",
"data": {
"merchant_refund_no": "string",
"refund_amount": 0,
"currency": "string",
"status": 0,
"failed_reason": {}
}
}