Looks like last nights 7 free meals was cancelled for everyone but they're now offering 2 free meals (and intentionally this time!). There may be delivery charges based on your location - metro appears to be free though.
Here's the content of their email:
We did it, Fam. We went VIRAL… sort of.
Last night we had an exclusive code for competition winners - THEBLOCKFREE - leaked to multiple discount sites. Unfortunately, the code you’ve used to place your order is valid for competition winners only, so your order/s will be cancelled and any cost incurred will be refunded.
However, we don’t want you to get too hangry and would still love for you to place a fresh YF order so you can ditch the groceries for a week!
Head on over to youfoodz.com & we’ll give you 2 FREE meals to the value of $20! #TakeTwo
Use the code “TAKETWO” at checkout
Offer expires 2nd Nov 2017 at 1:130pm AEST