Nectar app - confused: do you get extra points if you save items in the app?

[Lifebi]

or is it just to show you where extra points are available and you'll get those points anyway if you swipe your card in store?
It's not very clear!
Help!

I think you have to save the offers to get the points when you shop in store .

You pick the offers (or all) you want and save them then get the points when you buy, it’s just an electronic version of the till spit coupons. They used to have this then stopped it a couple of years ago, now restarted.