Issue with email linked to SW:TOR account

Greetings,

I'd like to ask for support on the following issue:

Forced to delete the email account that was directly linked with my SW:TOR account, I am now unable to access the email sent to it in order to reset the password, since I stopped playing for at least a year and now I cannot remember it.

Now, I'd like to add that I invested a lot in that account, both real money and time, and I would really like to recover it.

Is there a way for me to change the email linked to that SW:TOR account?

Or do I have to start over with a new account?