Get a free burger on your birthday (no other purchase is required) - edit: finding it difficult to create an email for you all - I advise you to sign up as a burger VIB on their website
I just tried it in a store in Wellington and got my "Bastard" burger free (RP $14.20)
To receive the email referred to in the conditions, you may need to sign up as a VIB.
From Jay below:
Burgerfuel Marketing manager says, the email is generated automatically, and sent a day or so before your birthday. So won't necessarily get an email until then. If signing up on your birthday, the system may not process it fast enough and default to the next birthday.
If any issues with this, as in not receiving an email before the birthday, send a request email through to [email protected]. They seem friendly enough, so if you are genuine, sounds like they should try to help.
Nice find, have added this to our List of birthday deals wiki page.