quorum

we have 4 units in our strata scheme, with one person owning 2 units (and having approx. 58% of the unit entitlement all up).

A Extraordinary GM was called to vote on a special levy, and only the one owner attended (he who has 2 units)

The EGM passed a resolution that a special levy be raised, and subsequently we received a bill for $14,000

We have pointed out  to the strata managers that a quorum is 2 persons, and as this was not reached the special levy is not valid. Their response is that we are wrong and they have now issued letter of demand 9including costs)

so…is a quorum 2 persons (office of fair trading says it is, but as above the strata managers say this is wrong), and what is our next step 9other than pay the $$)?