I have no idea where Willetton is, but there's gonna be free burritos.
Time to book a flight to somewhere!
From Zambrero's FB-
We're giving away 1000 FREE burritos at the opening of @ZambreroWilletton in on Thursday, 3 July from 12:00pm onward! Drive or walk, just be there! 47 Burrendah Blvd (one burrito per customer)
Yuu will be happy to know I am sure that Willeton is in Perth, Hence the WA bit in your title