Hey @yofavBrazil,
This happens if you unlink an account, as your progress is saved on the original EA account where it was first earned.
This is mentioned in a disclaimer whenever an account is unlinked, but we have some additional information about it below as well.
Unlink your platform accounts from your EA Account
Do you play Apex?
If you unlink a platform account that you use to play Apex Legends, you may have issues with Battle Pass leveling, item unlocks, and other errors.
Instead of unlinking and relinking a platform account you play Apex on, it may be better to start fresh on a new account.
You can try re-linking the original accounts to restore your progress, but if you run into any trouble with that you'll need to reach out to support for assistance.
If you create a new case here and select Game Support > The EA app > I want to update my EA Account information, you should be able to get in touch with the support team so they can assist further.