You use the standalone version downloaded from the website, right? I checked our backend and I don’t see the tutorial being complete on your profile. Can you double check that you are logged in the software? You can press Login when in the main menu, then make sure to enter the same credentials you used when registering here. Once logged in, the tutorial achievement should unlock on your Profile, and you should be able to claim your pack for free. Logging in is necessary otherwise we don’t know who to give the free pack to, and also once you unlock or purchase a pack, the software won’t know you own them. 🙂 Does this make sens?
I hope this helps, but please let us know if there’s any other issues.