I am having the same issue as others in this topic. I've been unable to purchase subscription or cartel coins through the website.
My SWTOR account is lordfacrer
To fix the account You need to reset the password on the linked EA account that account has No persona (not Lordfacrer your posting on now) that EA account uses a Gmail email address ( the Gmail used is not the Gmail on your swtor account)
I gather you used another gmail on that swtor account , it will be the email needed on the linked EA account
use the following link to reset the password then login on that EA account to fix the swtor account for purchasing
for future purchases, use incognito mode on chrome initially if you purchase on swtor.com to be sure browser cache and cookies is cleared
The problem is the EA account. You just have to reset the password for that and everything else falls into place.
