Must admit I didn't know, but this is what Mr. Google says about Nectar Vouchers and points.
Vouchers remain the property of Nectar 360 Ltd. Each Voucher is not valid beyond the expiry date shown on its face. Vouchers cannot be redeemed for cash nor sold or transferred for value.
There is no automatic expiry date for Nectar points. But if you don't collect or spend any points for a year, we assume you no longer want to take part in the Nectar programme and will close your Nectar account.
