Martin Lewis has issued an urgent warning to Sainsbury's customers following a change to the supermarket's Nectar card. The ...

"Only the 'primary' Nectar card holder will be able to lock and unlock points. This means that only the person who set up the Nectar account will be able to use the feature. Any additional card ...

When your points are locked, your points balance will show as zero at the checkout in store and online. To use them, you'll need to unlock them through the app first – this should be instant, but may ...

Martin Lewis' Money Saving Expert has warned Sainsbury's has added a new 'Spend Lock' feature to its Nectar loyalty app that prevents your points from being redeemed without your knowledge.

"Only the 'primary' Nectar card holder will be able to lock and unlock points. This means that only the person who set up the Nectar account will be able to use the feature. Any additional card ...