Re: cannot login due to security key
To remove the security key you will need to go to swtor.com and go to log into your account. Fill in the Display Name and Password fields but leave the Security Key field blank. Next click Login and it will take you to the attached screen.
Click on the link that says Lost your security key? and then follow the steps to receive a one time password to remove it. Once removed you can add a new one using the security key app for any iPhone / Android.
If you don't see the attached link, make sure you don't have any browser add-ons enabled that might block or hide the link and ensure your browser is up to date or try another browser.
If you have any issues removing the security key, you will need to call Customer Service for further assistance:
For details on how to contact SWTOR support you can follow the steps outlined in this article here : How to get help with STAR WARS™: The Old Republic™
[CM - Edited post with updated article on how to contact support for STAR WARS™: The Old Republic™]