RefundOrderItemType

Parameter	Required	Type	Comments
refundType	true	string	Refund type
merchantTradeNo	false	string	Merchant order number, required if payId is not provided
payId	false	string	Bybit pay ID, required if merchantTradeNo is not provided
merchantRefundNo	true	string	Merchant refund number
refundAmount	true	string	Refund amount, support partial refund
env	true	EnvType	Env info
riskInfo	false	RiskInfoType	Risk info for order pay
customer	false	CustomerType	Customer info