Registering an EP purchased before Origin or EA app

MARSremmus​  I don't think that option has ever existed in the EA App.  You could try installing WA via disc and see whether it loads, but don't count on it—the App is less flexible on this front than Origin was.

If you still have access to the email address you used when you originally registered WA, you could contact EA customer support and have someone merge it with your current account.  All you need to do is prove ownership, which in this case means being able to login to the account or provide enough information about it to show it was yours.  With a merge, any expansions or stuff packs that account owned should be transferred to your current one, although Store content won't transfer.

If you don't have access to that email address, or you can't remember what you used (and none of your current emails have an EA account attached to them), you might be able to get help by providing the product code for WA.  Aside from that, there isn't anything support can do.

If you do want to buy WA again, it's occasionally on sale for 50-60% off in the EA App.

Thanks, but I don't think I ever used an email when I registered the game the first time. I played before I had an Origin account so I installed it directly to my computer. If I did have to use an email when I first registered, I don't remember. When I did get the Origin app, it wouldn't let me register the base game or the expansion. I decided to just buy the base game again, and get WA another time. I then found out about the "add non-origin game" option, and just played WA that way. As of right now, my email is the same one I've been using since the 2010s; the one I originally used when I made an Origin account, is still the same when everything migrated to the EA app. I'll try again contacting support and see if there's anything they can do.
Thank you though!