public void WithdrawalBalance(String anumber)
        {
            int limit       = 50000;
            var amountTotal = _model.GetByAccountNumber(anumber);

            if (amountTotal.Balance <= limit)
            {
                Console.WriteLine("The amount in the account must be over 50000 (VNĐ)");
            }
            else
            {
                YYTransactionHistory h = new YYTransactionHistory();
                Console.WriteLine("Please enter the amount you need to withdraw");
                decimal amount = Decimal.Parse(Console.ReadLine());

                if ((amountTotal.Balance - amount) < limit)
                {
                    Console.WriteLine("The amount you can withdraw is currently: " + (amountTotal.Balance - 60000)
                                      + "\nPlease retype");
                }
                else
                {
                    _model.WithdrawalBalance(amount, anumber);
                    h.AccountNumber       = anumber;
                    h.Type                = 1;
                    h.Amount              = amount;
                    h.TradingAcountNumber = "1";
                    _history.HinsertBalance(h);
                    Console.WriteLine("The amount you have withdrawn is " + amount + " (VNĐ)");
                }
            }
        }