Win 1 of 5 $250 Ezibuy Vouchers

The T&C's mention being a Woolworths rewards customer, but at the top of the page is just says, "Simply sign up to receive emails directly from Ezibuy for your chance to win"

From the T&Cs
Entry is open to all Australian residents, 18 years or over, who are currently Woolworths Rewards members, and who sign up to EziBuy as new customers between 27 November 2015 and 20 December 2015 (“Eligible Entrants”).

The random prize draw will take place at 11:00 (AEDT) on 12 January 2016 at Oxygen Interactive Marketing, 117 Wellington St, St Kilda VIC 3182.
There will be five (5) winners randomly selected from Australian entries received during the Promotion Period.
The winners will receive an EziBuy Gift Card to the value of AUD$250.00 each.
Total Prize pool value is AUD$1250.00