Steam account permanently linked to banned EA account – need unlink assistance

Hello.

I have an issue with account linking that regular support could not resolve.

My old EA account was permanently banned a long time ago due to an inappropriate nickname.

I fully accept this ban and I am not requesting unban.

However, my Steam account is still linked to that banned EA account.

Because of the restriction, I cannot access the account linking settings to unlink Steam.

Now I created a new EA account, but I cannot link my Steam account because it is still locked to the banned one.

Support told me to contact ToS, and I already submitted an appeal case.

But my main issue is not ban removal — it is only unlinking my Steam account so I can use my legally purchased games.

Is there any way to escalate this case to account linking specialists or community managers for manual unlink review?

Thank you very much for your time.