Episode 2 not unlocked
Are you trying to access it from the green star in your Hero Panel, rather than the Living Story tab?
Maybe a screenshot would be helpful…
Good luck.
http://i.imgur.com/UNbBhdW.jpg
It’s locked and says that I need to purchase it, despite having told me it had been unlocked.
In that case, try picking up any items waiting for you at the Trading Post (I can see from your screenshot, you have some Gold/items waiting), and clearing out all your mail. That should allow you to receive the letter starting the Episode.
If all else fails, you will have to contact CS for assistance. Top of Page – Services/Support – Submit a Request.
Good luck.