The Green Man Pub offers $15 Food & Beverage voucher for signing up to their VIP Club. You also receive a voucher on your birthday although I'm not sure what the voucher entitles you to. Joining is is free other than the 20c it costs to send a text message.
Joining the Greenman Pub VIP Club is easy. Simply send the following txt message from your mobile (it costs 20c):
TXT: greenman (space) your email address to 4664
Remember once you sign up, you will need to use the voucher within a few days. Best to signup when you know you will be visiting them. Check out other pub freebies.