To get the code, please do the following:
(1) Visit this site for the code, it is under the "Neverwinter" entry:
http://community.arcgames.com/en/news/neverwinter/detail/3030473-come-grab-your-free-arc-gifts_#
(2) Download and install ARC from the top-right button that says "Install Client".
(3) When done, launch ARC and log in with your Neverwinter account.
(4) In the client, on the top-right will be your username. Click on it, and click on "Redeem Code". Paste the code you got from the first step.
(5) Once done, please visit the Rewards Vendor in town (left of the prayer circle) to claim the companion! You can claim it on all your characters in your account.
Sorry for not just placing the code here, but I'm afraid the page might get updated and the code may be changed, so I'd suggest you just visit the page for it :d
Thanks for reading!
P.S.
There are rewards for other PWE games as well.
![Smile :)](./images/smilies/icon_e_smile.gif)
![Twisted Evil :twisted:](./images/smilies/icon_twisted.gif)