Thanks for that explanation Akoz, that's why I don't see it. When I pop into Sainsburys for just milk and bread (and to take advantage of the free town centre parking) I without fail check the App and pick up something that we would use, because it has bonus points, e.g. Tin of soup etc

I would do better in just getting all these bonus offers on the same day and any subsequent trips just get what I need and pick up random bonus points upon leaving.

Many thanks