Just a follow up to the fraud on our $100 gift card - not only do you require the receipt but you also need to know which register you used in store and the time thereabouts that you made the purchase.
Anyway, my partner persisted - were able to ascertain the date the gift cards were purchased through our flybuys account, printed a copy of our Amex statement showing the transaction, my partner 99% of the time uses express lane or SSCO so had to take a guess on that but with all the evidence the duty manager was able to find the receipt in 5 minutes. All sent off to Coles Customer Care.
Lesson learnt so we will be keeping all receipts for gift cards from now on until redeemed. A handy hint my partner discovered through a forum discussion about the fraud issue was to use the gift cards immediately to put your utilities, rates accounts in credit. Probably not useful for those redeeming $1000s of dollars in gift cards, but for us wanting to take advantage of the offers with a smaller spend, not a bad idea.