Just looking through an old topic and discovered that Fatso Promotion: Foodtown/Woolworths, 1 month free voucher code "ym8f3phnm" is still valid apparently.

You'll need to use this link: https://fatso.co.nz/voucher and join as new member.

It is a "3 Disc Unlimited [#62] - 3 DVDs at a time" and at the end of the trial, if you continue, it is $32.95 per month.