Just got this offer by email. Probably targeted. Can be redeemed multiple times.
Can get up to 5/30 + 4 (Docket) + 10 ($20 purchase) = 30.7 c/L off.
Terms and Conditions
~1,000 BONUS POINTS offer valid when you purchase 30L or more of any fuel type (excludes LPG) during the promotional period Thu 21 Dec and Wed 27 Dec 2017 at Shell Coles Express. Excludes Adblue, Fleet Card, Shell Card, Motorcharge and Motorpass purchases. This offer can be redeemed multiple times during the offer period. To qualify for this 1,000 BONUS POINT offer, you must activate this offer before refuelling at any Shell Coles Express and present your flybuys card at the time of purchase. You have been specifically selected for this offer and it is not transferable. Points awarded after savings and discounts. Points collected from this promotion will appear in qualifying members accounts no later than 4 weeks after the promotion ends. This offer has been sent to you by flybuys. flybuys' privacy policy applies. Standard flybuys terms and conditions apply and are available at flybuys.com.au.
*Once a member has selected to receive either 4c/l or 8 flybuys points per litre via the toggle, it will take up to 5 minutes for the option to take effect. The option chosen (either 4c/l or 8 flybuys points per litre) by the member will impact all associated card holders on that account.
The 4c/litre or 8 flybuys points per litre options can be redeemed provided a 4c/l docket and flybuys card are presented each time a member shops at Shell Coles Express. 4c fuel discount voucher received when you spend $30 or more in one transaction at Coles Supermarkets. Limit 1 receipt per fuel purchase up to 150L, per vehicle, per customer. Excludes Fleet Card, Shell Card, Motorcharge and Motorpass purchases. Offer also excludes Coles Online 4 cent discount vouchers and is not available with any other fuel discount offers. Copies of the receipt will not be accepted and voucher must be surrendered upon redemption. Receipts or vouchers that have been defaced, damaged or altered or have passed their expiry date are not valid for any Fuel Discount Offer.
Apart from the fact that their fuel is consistently 4c more expensive than everywhere else, this isn't too shabby of a deal if you were good refuel there anyway.