Battlefield 6 Account Restricted - Platform Entitlement Bug?

I’m having this exact same issue. I have it on Steam and it works just fine. I recently downloaded it via the Epic Launcher on my PC so I could have cross progression between my Xbox and pc. This message appears right after the opening credits 

Hi,
I own Battlefield 6 in PS5 but I also downloaded Redsec on PC to play in my laptop on the go. When I'm starting the game and get connected to the servers, I get the message "account restricted" the QR does not give me  any useful information.
I play other games in my EA account without any problem, do you know how to fix this or if it's EA the ones that need to fix it on their side.
Thank you for your help.

"Contacting" the ToS team just gives everyone the same automated response, as i said. There's no option to live chat or email anyone on the team. Can EA please address the issue of Javelin issuing false bans?

Look at the sticky for known issues, this is what it says;

• If a player removes the "Battlefield 6 Marker "from their installed DLC on Steam, it will result in them being unable to play Battlefield 6 and will be presented with an "account restricted" message. Reinstalling this marker will allow you to connect and play once more.

Same, bought and play on XBOX just fine.  Redsec on PC will not work.

I don't have a main game, and when i log into the game, it tells my account restricted

same here 100 of others

same problem

Hi imk148,

Sometimes, that implies that the account has been banned. If you wanted to check this, there's a webform in the guide below that will let you contact EA's Terms of Service team. 

https://help.ea.com/en/articles/security-and-rules/locked-banned-suspended-accounts/ 

Alternatively, it may be worth making sure that all addons are installed, in case that's causing the issue. 

VermilionTomb Yes, that's correct, I'm afraid. Their ToS team only correspond over email, so you can't contact them in any other way, and will use set-text when responding for consistency. However, all appeals are reviewed by members of their team.

EA Help are also unable to handle bans and can only initiate the appeal process on behalf of users. This is why they have directed you and others back to ToS.