缴费单笔流水退款接口
接口:http://10.235.237.141:9081/aladdinInner/jf-openapiweb/bridgeTrans/refundTrace
方法名:refundTrace
缴费中心流水号(traceNo):
*必输
商户编号(merchantId):
*必输
退款金额(amtRefund):
*必输