According to Section 19 of the strata scheme management Act, a secretary must call a general meeting withing 14 days of receiving a “qualified request” from a sufficient number of owners.
This is what the section says: “A request is a qualified request for the purposes of this section if it is made by one or more owners of a lot or lots in the strata scheme having a total unit entitlement of at least one-quarter of the aggregate unit entitlements.”
In the case above, we can assume that the strata manager is acting as the OC’s secretary. In which case, I wouldn’t even bother with mediation and just make a complaint directly to Fair Trading. But mediation in a case like this shouldn’t take more than a couple of weeks – if the SM even allows it to get to that stage before doing the right thing.