Tesco Groceries initially track all purchases at £0 and on confirmation it will update to the correct rate

• If you are already registered with Tesco Groceries
• If you purchase a product from the ‘Home Efficiency’ category
• If you apply an additional discount that reduces your overall purchase price, this may cause your cashback to be declined or reduced. e.g Voucher codes, student discount, staff discount
• If you pay for your purchase using gift card
• If you purchase a gift card & gift vouchers
• If your purchase is not fully completed online
• If you participate in any other offer/ promotion that is not covered in the retailer Points rates