private void PurchaseMenu()
        {
            while (true)
            {
                Menu.PurchaseSelection();
                var command = Menu.GetSelection(_purchaseSelections);

                if (command.ToLower() == "purchase")
                {
                    Purchase();
                }

                if (command.ToLower() == "deposit")
                {
                    Bank.Deposit();
                }

                if (command.ToLower() == "balance")
                {
                    Bank.BankMessage("Your current balance is: $");
                }

                if (command.ToLower() == "exit")
                {
                    break;
                }
            }

            Console.Clear();
            Start();
        }