The Haunter Dragon and Dwarven unit bonuses are only for purchases directly through the store on our website
not through Steam or other retailers. The codes would be in the link with your game key, sent via email. This game key can be activated on Steam or used without Steam.
The friend referral bonus code for the Ice Dragon and in-game currency is sent via email. The email might be in your Junk or Spam folder, if it's there please mark it as Safe or Not Junk/Spam so future emails don't go there.
It's also possible the referrer name was entered incorrectly as usernames are case sensitive.
If you cannot find the email with the codes, email firstname.lastname@example.org
with the details and we can get this sorted out for you.