$5 of when you spend $100 in one shop at Cole/Bi-Lo. As per previous post:
https://www.ozbargain.com.au/node/143199
The dates overlap, but this new one is valid until 3rd August and can be used multiple times as long as you DON'T show your Flybuys card for 2nd, 3rd, 4th etc use (they match your Flybuys card to the voucher number and limit it to one use).
Another thing to note is that your final spend must be over $100 after any other offers are applied (such as redeeming 2000 Flybuys points to get $10 off). I got caught out once when I spent $106, then they took off $10 with 2000pts redemption, so I could not use the $5 off voucher. Lesson learned !
I always use my ING card to pay to get another 5% off, so effectively getting 10% off every grocery purchase.
thanks!