Spar rewards SLIP is to confuse you as customer

The way SPAR and it's loyalty program works compared to the slip that you get at the till is absolutely unacceptable. Why does SPAR capture the original price and then give Rewards promos on slip, You can't monitor your slip properly. And then the promo reward is not all, further down the slip they then give another amount that shows SAVEEXTRA, how can they do this. At Pick n Pay they at least give you the price on the slip you pay for, discount included.SPAR is trying to bull**** you, it makes it impossible for clients to properly check at the till. You then travel to your home, driving and using your petrol and then you have to go back 30 km back and forth, who pays for that???