Supermarkets slammed for multi-buy rip-offs

Which? have shone their investigative spotlight on supermarket 'special offers', which according to the consumer champion, aren't very special after all.

Which? examined 700,000 products during a period of 12 months and has castigated multi-buy 'offers' from the likes of Tesco, Asda, Morrisons and Ocado. Let's look at some of Which's allegations in detail.