moonsaucsv You would need to contact EA Support to recover your hacked EA Account, and then you would need to contact the EA TOS Team to appeal the ban on your EA Account.
If the connected EA Account isn't your EA Account, you should be able to contact EA Support to have them unlink your Steam Account from it, (and if your Steam Account was once linked to your EA Account, you may experience a loss of some, (or all), of your Apex progress and data, (even when relinking your Steam Account), which this loss is permanent if relinking doesn't restore anything).
Note: Account related issues, (such as being hacked and/or banned), cannot be handled on the forums.