Some retailers selling charity Christmas cards are donating less than 10% of their sale price to the charity, according to a recent survey by consumer organisation Which?

Reportedly Asda donates just 20pence from its sale of £3 charity cards, or 6.7%, the same percentage donated by the Co-op on its £1.50 cards. WH Smith and Waitrose both donate 10%, but John Lewis, which owns Waitrose donates 25%.

Charitable types wanting as much of their money as possible to reach their charity are advised to purchase cards directly from the charity, rather than through a retailer.