Lost all my cosmetics, but kept my stats
I may have linked my steam account to my PS4 account through EA way before the cross progression update trying to get my PS4 cosmetics in my steam account. I've lost all my cosmetics, but kept my stats and purchased items like the Bloodhound and Lifeline edition. If this is the case, is it possible to have my cosmetics restored?
No, I'm afraid not. If you've just linked your PSN to another EA Account you've lost access to your progress.
Progress is stored at the EA Account level and cannot be transferred by linking a platform to a different EA Account.
You would need to re-link your PSN to whichever EA Account it was originally linked with in order to try restoring access to that content, so if you have any issues re-linking your accounts please reach out to support so they can help get your platform account back to its original EA account.
Please feel free to check through the links below for more details on how Cross Progression and unlinking platforms will affect your account.