(1) The due date for payment of the levy to SNZI is—
(a) the date of sale in the case of summerfruit sold—
(i) by the grower direct to the public or to a collection agent; or
(ii) by a collection agent on behalf of the grower; or
(b) the date of processing in the case of summerfruit processed—
(i) without having been sold by the grower; or
(ii) by a collection agent on behalf of the grower; or
(c) the date of export in the case of summerfruit exported—
(i) by the grower; or
(ii) by a collection agent on behalf of the grower.
(2) The latest date for payment of the levy is the 20th day of the month following the due date for payment.