The site works fine for me, but some etailers either don't honor the transaction or are amazingly slow to redeem the points for you. Chasing them up is nigh on impossible. I tend to utilise sites that automatically link in your nectar account, which helps alot. I have accrued plenty of points over the years and like that they can be cashed in directly or as Amazon vouchers. Good stuff.
*UPDATE* Nectar has dropped Amazon affiliation, which is a big negative for me. I have definitely used the system less since this has happened.
To reply as a company, please log in to your business account.