This is for Delivery Hero, which, well, delivers food to you. http://www.deliveryhero.com.au/
If you're a new customer looking to order something tomorrow (ie 14th July), there's a limited-to-150-uses $15 discount code you can use for that. http://www.ozbargain.com.au/node/74870 (DHDISCOUNT15)
Otherwise, if you miss that, looks like they're offering a referral program. If you're a new customer, you'll get a $10 off voucher sent to your email by using someone's referral link. (Said someone gets a $5 voucher after you've ordered.) Not sure if ref links are allowed in the forums, but anyway, mine is below, if anyone can use it.
http://vouchfor.com/Delivery-Hero/offer/2709226?utm_source=t…
If I can edit this post later on, too, I'll add any other ref codes others may link. (Join up for your ref code here - http://vouchfor.com/Delivery-Hero/)
I've ordered from them once and it was okay.
"As a new customer, we want to offer you $10.00 off your first online order from your favourite restaurant at www.DeliveryHero.com.au. This reward cannot be combined with other offers and has no cash value. Valid for online payment only. One voucher per order. For first time customers only. "
"When your referral becomes our new customer, you will get $5 off your next online order. There is no limit to the number of customers you can refer and the number of reward vouchers that you will earn. Your vouchers are redeemable for orders at www.DeliveryHero.com.au using online payment only and are not redeemable for cash. Valid for online payment only. One voucher per order."
ala Amway :)