I noticed the self service screen said "coupon stored" (momentarily in smallish font), when I scanned the bar code, before finalizing my shop, scanning my rewards card and paying if that helps.
Win a Family Holiday to Dubai Worth $17,040 from Woolworths [Rewards Members][With Purchase]
Dates
Prizes
Entry Requirements
OPEN TO
Woolworths Rewards Card members. Temporary Card holders are not eligible.
TO ENTER
During the Promotional Period (26 Apr to 25 May 2017):
1. Make a purchase at a Woolworths Supermarket or Woolworths Metro store (excluding smoking products, gift cards, mobile recharge, Woolworths Mobile, travel cards and tickets, delivery charges, internet cafes, Carpet Care, Woolworths Flowers, lottery products or purchases using Caltex StarCard). There is no minimum spend on the purchase.
2. Scan the barcode that appears on Page 73 of the May 2017 Fresh Magazine and scan your Woolworths Rewards card at the checkout.Max 1 entry per person.
PRIZE
A Marvel family (2A/2C) holiday to Dubai valued at $17,040, including:
1. Return economy airfares to Dubai, United Arab Emirates, from the Prize winner’s nearest major Australian airport.
2. Five nights' hotel accommodation in a 5 star high rise hotel with breakfast included.
3. Return airport and hotel transfers.
4. Dinner at Tony’s Skydeck.
5. Experience Human Body Flight pass at iFly Dubai.
6. Entry to the top of the Burj Khalifa.
7. Travel insurance for 4 people.
Did this today and didn't get any sort of notification or print out on the receipt.
Here's the barcode to scan:
http://i.imgur.com/IhuNzH5.jpg