I found the below offer on the Flybuys bonus points page (link a couple of posts above)
COLES BAKE AT HOME DINNER ROLLS 6 PK
Earn 50 bonus FlyBuys bonus points when you purchase Coles Bake at Home Dinner Rolls 6 pack. Offer valid at Coles, Bi-Lo, Pick n Pay & Coles on-line (excludes Coles Express).
From: April 25, 2012 to May 1, 2012
I buy these from time to time and yesterday just happened to be the day I needed some. I needed more than 6 rolls however. They weren't on special. The 6 pack cost $2.50 in my local store and the 12 pack was $3.00. It wasn't worth buying 2 of the 6 packs to get 100 bonus points. It was cheaper for me to get the 12 pack with no bonus points.
Be careful when you see the in-store bonus points offers on products. Make sure that the pack size is right for you and is still the best value for money.