Unable to activate bought subscription

Hi,

I recently bought an SWTOR 60 day game time one-time subscription through Steam, because I was unable to buy one directly via the official website (always got an error).

I linked my Steam account to my SWTOR account a few days before. 

Now I discovered that it could be because of a problem with my originally linked EA account. 

I updated my SWTOR E-Mail years ago, because I didn't have access to the original one. 

I assume my SWTOR is still linked to my original E-Mail, which is already deactivated/deleted. Therefore, I can't reset the passwort or check the current condition of the automatically created old EA account.

My bought game time did not activate in the meantime and Steam told me it's a EA topic.

What can I do to get my 60 days of game time?

SWTOR-Account: Sooooldier.

Thanks & best regards