I have a spare Kogan Mobile Prepay: LARGE (365 Days | 15GB Per Month) voucher for sale.
$165
It will be easier if you have a Kogan Sim to use this with already, so I can just email through the code.
Otherwise I have a spare Kogan SIM card here if you need one too.
IMPORTANT NOTE: The voucher has to be used by 31st Dec.