The account number changed to 1st class

But I forgot original EA Account what to do

I forgot EA Original account

If you need a hand finding your old EA account you'll need to reach out to our live support team. We can't look up account details here on the forums, but they'll be able to take a look for you. If you have any old emails or usernames that you can share with them, that'll help them a lot.

I'm having the same issue. I'm playing on PS5. I hope this gets resolved soon.