umm, viv, you should be getting points for ALL purchases. not just pick up shops.
On the receipt it should show the points you earned at that visit. If it doesn't check your account online. Go to the fuel points rewards, and under the total for each month there is a link to go to your point totals for your transactions.
Hamp, EVERY Friday is 4x fuel points, but you have to clip the coupon each week. It expires each Friday and the new coupon for next week is loaded on Monday and you have claim it.
Last year, they did a bunch of different extra point promos, trying to find which worked best. Several weeks ago they announced that 4x Friday is continuing indefinitely.