Dear Jimmy,
You may wish to seek some further advice on your position reflected above.
From my experience most Strata Insurers will denie the claim for internal paint work or carpet within a lot, irrespective of the cause. This is because quite simply the OC’s insurance can not insurer property that is not common property.
This is much like if you were to have a car accident, each party claims on their on insurance which in turn pursues the party responsible.
Mr S