Try not going to a BP/OTR (South Aust) for a few weeks, after being a very regular customer, you will start to get offers.
Keep playing this game, I most of the time go to Coles Express, until I get OTR offers in South Aust, and then go back, then go away again.
And as I always say, do not ever tap or just enter the VGW wallet card down the bottom, always slide it down the right hand side first, this gives you the VFF bonus, after the right swipe, the enter the card at bottom and type in PIN.
Have never missed points this way by swiping VGW card down the right hand side of EFTPOS machine first, BUT the several times the person behind counter said, no need to swipe down the right hand side of EFTPOS, I listened to him, I did lose the bonus points!
Just tap/enter VGW card down bottom and type in PIN, he said, I lost a lot of bonus points this way.
Edit: you must go into your VFF account, and not only tick partner offers, but you must tick the one that says "fuel partner offers".
If yours in your VFF is ticketed, and you have not had any offers, start buying things from BP fuel, or OTR in SA, and then stop for a while and see what happens.