Unable to upgrade game because old account uses now deleted email :(

It's been impossible to get any additional help with this so appreciate any feedback. 

I bought Sims 3 almost 10 years ago. I used Origin to download it. I haven't played it since maybe 2019/2020? Today I remembered I have it and thought it would be fun to play for a little. I tried logging into the account but it's with an email that I have since deleted. This means there is ZERO way for me to access that email. I deleted that email maybe 2 years ago...

Anyway, I was told I can still play the game since I have all the game files on my computer still. So I tried to play it, but it's not the right version for a newer Mac (32-bit v 64-bit issue). So I go to figure out how to update the game but it seems the only way to do so is through the old account. 

I even created a new EA account and look through the code/files of the game to get the product key to try to add it to my new account. But of course it's "already claimed" because I bought it 10 years ago lol. So that doesn't work either. 

Support chat ended before I was able to finish asking additional questions and now I can't find any links to open a new chat. I just want to play the game I purchased already because it has saved files of sims I created that I'd like to access again :( 

I have had this issue happen in the past after deleting my email, in regards to accessing an account, and every other place allowed me to update my email so I could access the account still. EA seems to be saying there is no way for them to help me update my old account which I think is bullsh*t. Does anyone know any way to resolve this?