I have been contacted by other energy companies which are offering better price but I declined because I was getting equivalent benefits from the 5% (or the not so good 4%) gift cards and didn’t want to go through the hassle in switching. Now that this is gone, I will consider switching to cheaper energy providers.
If you have some connection with SunCorp (brands aami, gio, bingle, apia,...) they have woolies cards (supermarket and petrol seem to be separate now, but either is available) for 3% off. A discount of 3% is at the point that it's hardly worth the trouble, but just letting people know.
Found them for 4% discount somewhere else (can't remember where, now) but there was a 1% CC surcharge (the only method available for purchase)! At least Suncorp doesn't charge a surcharge.
Suncorp also has 5% discounted JB cards which we also used to be able to get through AGL.
Is there any update on the addition of supermarket giftcards to AGL rewards? I just switched both gas and electricity to AGL but I will consider switching it back to another competitor if the discounted giftcards are not brought back. It is disappointing and false advertising on the AGL rewards website about giftcards related to groceries.