private void GetBalance_Click(object sender, EventArgs e)
        {
            if (!rbReal.Checked)
            {
                MessageBox.Show("Get balance only for Real", "Warning");
                return;
            }

            var market = GetMarket();

            if (market == MarketType.Empty)
            {
                return;
            }

            balances         = balances ?? new Dictionary <MarketType, DataBalances>();
            balances[market] = rest.GetBalance(market);

            lbBalance.Text = "Update time: " + DateTime.Now.ToString() + " for market " + EnumValue.GetValue(market);

            UpdateBalances();
        }