1) If you still have the MT4 application on your mobile and even if the broker is disabled, you can still view the balance following the last trade made by the ATG and ATC robots. Let's see how to do it.
2) Otherwise look in your old emails from Pantheratrade or Legomarket
Launch the app MetaTrader 4, then, at the bottom right, tap on the "Settings" icon. A box will appear at the top, click on it. This will give you access to all your MT4 accounts registered on the app.
Under the "Trading Accounts" section, you will see the MT4 account number and the corresponding broker. By pressing the icon on the right, additional information will be accessible.
A popup will appear, and the last line will show your account balance in the configured currency.
