If your Nectar card is lost or damaged, you can request a replacement card online at Nectar.
In the meantime, you can continue using the digital card, which lives in your Nectar app.
How to do this online at Nectar.com
You can request a replacement card by going to 'Your account', scroll down to the 'Support' sections and select 'Replacement Nectar card'.
Just so you know, Nectar will issue you a new card number which you'll need to re-link to anywhere your card was previously linked. You can find out how to link your Argos and Nectar account by clicking here.
If your card is stolen, please get in touch with Nectar here.