Free (?) -8c/L Fuel Discount Shell Victoria Rd Parramatta

went to fill up the car before flying out sydney today
petrol sign showed 164.5 c/L for premium but the pump 1 which i usually go displayed 165.9 c/L
as i was filling up station attendant came out and checked the display error
told me i'd get -8c/L off
went to pay at the counter and he did
he also said that all other pumps are displaying the price correctly and that only pump 1 was had the issue

tl;dr
if you are filling up premium at shell victoria road, parramatta
use pump 1 as you might get -8c/L

first post be nice

receipt attached here

http://s17.postimg.org/mtooy9cin/IMG342.jpg

http://i58.tinypic.com/s42jw1.jpg