In this Act "rollover" in relation to a lottery means an arrangement whereby the fact that a prize is not allocated or claimed in one lottery increases the value of the prizes available for allocation in another lottery.
For the purposes of this Act where prizes are allocated by means of more than one draw—
the draws together constitute a single lottery if the class of persons among whom prizes are allocated is (and, by virtue of arrangements for the sale or supply of tickets, must be) the same in the case of each draw, and
otherwise, the arrangements for each draw constitute a separate lottery.