Guild Wars 2

I’ve had guild wars 2 since launch and I finally brought the expansion today but where is it? it shows my invoice after purchase but nothing indicating how or when ill retrieve my purchase.

Check your mail for a product key that you use to unlock the game by adding to your account on your account page.

Go to account.arena.net and log into your account. They click on content and add that number to it. It will unlock HoT.