Our builder is only in South Australia (although they apparently bought another company in QLD) so if you're not in SA it won't help you ...

Also, in the entire year we were dealing with them, they returned a phone call ONCE. Every other time I had to phone them 4 or 5 times until I hit the person I wanted actually in the office, since they don't listen to their voicemail or the receptionist never passes on messages or something.