Nectar loyalty card

The Nectar loyalty card is a loyalty card scheme in the United Kingdom issued by a partnership of suppliers including the supermarket chain Sainsburys, Barclaycard[?], the department store chain Debenhams[?] and the petrol distributors BP. It was launched in the autumn of 2002, but immediately encountered problems when demand by customers for online registration exceeeded the capacity of the servers to service the demand.