Account-Bound "code:net" Error - Requesting Session Reset

I'm posting here because I'm stuck with a game-breaking bug that is 100% tied to my EA account, and I've been unable to play Apex for almost a week.I've already been through EA Support (Agent Rahul), who agreed this is an account-level issue and told me to post here to get my case escalated for a fix.

My Account:
EA ID: ShiinaWakana 
Email: [edit: email address removed] 

When I start Apex, I get to the main menu. My ping to the data center is low and stable (e.g., ap-east-1 at 81ms, 0% packet loss). The instant I click "Continue" to enter the lobby, my ping spikes to 280ms-300ms+ , and I'm kicked back to the menu with a "code:net" error. This happens every single time.

How I Know This is an Account Bug (but not my PC/network):
I’ve done extensive testing to isolate this problem. It is not my hardware or my network.
1.I logged into my account (ShiinaWakana) on a completely different computer at another location. The exact same "code:net" problem happened.
2.My friend logged into their EA account on my computer, using my network. It worked perfectly for them.
My Own Troubleshooting: I have already tried every fix I could find. I reset my network, followed all standard EA Help guides, and even did a complete reinstallation of my entire operating system. The bug is still there.

This all started the night I downloaded Battlefield 6.

Rahul concluded this is likely "account-level routing or corrupted session data"  and that my case needs to be escalated.He advised me to request a "full session and routing reset" for my account (ShiinaWakana) from the Live Services team.
Please, can someone here escalate this? I just want to play the game again.

Thank you.