Not a wine drinker so havn't look to far into this…. looks like you need to join / add funds but can cancel and withdraw at anytime.
From the email
This is it! The world is ending tomorrow the 21st December according to the Mayan calendar! So we thought if this is our last email we will ever send we'd better make it a good one!
So, how about a cheeky wager in return for 6 FREE bottles…
Become a Naked Angel by 5pm Friday 21st December and we'll give you 6 FREE bottles of Naked Wines in January 2013 to celebrate we are all still here! Click here for more
What do I get for becoming a Naked Angel?
• 25-50% discount on all our wines, ALL the time!
• A FREE bottle every month (don't forget, you'll get a headstart in January)
• Invites to special Angel events and tastings
• A warm glow from knowing that you're supporting Australian winemakers
• And you can cancel your angel wings at any time without penalty!
What's the catch?
To get all these goodies, all you need to contribute is $40 a month (from January) to your own wine piggy bank. The money is yours to use on every purchase or you can take it all out (every cent) at any time if you decide being an angel is not for you.