If I understand correctly, you are saying that you no longer have access to your swtor security key, and you lost your password. That is a simple fix. First you get your password. I usually do that by going to the swtor website, click login then I click the lost my password hyperlink.
Then you get your security key, I copy and pasted what I usually do
Option 1: Remove Security Key via SWTOR Website
Go to swtor.com and enter your username and password.
Leave the Security Key field blank and click Log In.
If available, click the "Lost your security key?" link on the next page.
Follow the instructions to log in using a One-Time Password sent to your registered email.
Once logged in, remove the security key from your account.
if you want to add it back you simply go and add the security key back