I have previously lived in a mid-size strata lot in urban Sydney City, where two owners were behind in their levy payments. The OC allowed a repayment scheme to be set up, whereby the debt incurred interest, but the aim was to repay the outstanding debt within two years. New levies added to the debt, so the repayments had to account for the new levy as well as the debt within each three month period. Since very few owners cared, this scheme worked quite well.