Is your loyalty card REALLY a good deal? How price of biscuits, toilet roll and chocolate are hiked days before offering discounts - as supermarkets make £300m from selling customer data amid a surge in new sign-ups : vimarsana.com

Is your loyalty card REALLY a good deal? How price of biscuits, toilet roll and chocolate are hiked days before offering discounts - as supermarkets make £300m from selling customer data amid a surge in new sign-ups

Tesco and Sainsbury's have boosted their Clubcard and Nectar schemes in recent months with thousands of discounts in an attempt to get more customers to sign up.

Related Keywords

United Kingdom , Britain , Tesco Clubcard , Sarah Cardell , Tim Mason , Giles Hurley , Competition Markets Authority , Tesco , Trading Standards Primary Authority , Superdrug Health Beautycard , Markets Authority , Sunday Telegraph , Boots Advantage , Mymorrisons Card , Superdrug Health , Asda Rewards , Co Op Membership Card , Money Mail , Clubcard Prices , Clubcard Price , Nectar Prices , Dailymail , News , Inflation , Aldi , Cadbury , Lidl , Sainsbury S ,