There is another possible action – a Section 232 order compelling the strata committee to fulfill their duties. This can be triggered by an official request from you which is either denied or ignored for two months.
If they deny or ignore past the threshold, you commence proceedings asking for mediation at Fair Trading. If you fail to get a written agreement to do the work within a certain time, then you proceed to NCAT.
By the way, I would love to hear from anyone who has pursued a section 232, either successfully or otherwise.