Please read the above carefully
How you can spend points
Each 1 point can be redeemed for £1.00. At the check out, under Payment Methods > Spend Your Points. You can choose how many points you want to spend for this order. Each point gets £1.00 discount. You can only spend up to 50% of the order total. However, you cannot spend points when using a discount coupon. Though you'll be able to earn points on purchases using coupons. You can only spend points on the online shop, not via email.