Had an email from Cabana:
When you sign up to the Cabana Club Card (available in store from September 19th)
Once you have redeemed your free street food offer you’ll gain access to your monthly reward, which up until the end of September is a WHOPPING 50% OFF!
You’ll receive an awesome "special offer" every single month which will be redeemable ALL MONTH LONG! That means, from now until the end of time we’ll be treating you every single time you come to Cabana! That sounds like a pretty sweet deal, right?