public Result PayCmdRefundQueryInterface(string requestNumber, Req_4019 req_4019, bool isAll = false, string counterId = "")
        {
            var be     = new BankEnterpriseDirectInterface(this.IsSpecialLine);
            var result = be.PayCmdRefundQueryInterface(requestNumber, req_4019, isAll, counterId);

            return(CommUtils.ToResult(result));
        }