public Result OffshoreAccountTransferInterface(string requestNumber, Req_4020 req_4020, string counterId = "")
        {
            var be     = new BankEnterpriseDirectInterface(this.IsSpecialLine);
            var result = be.OffshoreAccountTransferInterface(requestNumber, req_4020, counterId);

            return(CommUtils.ToResult(result));
        }