The Guide also provides three examples of price comparisons that may not be genuine:
1) Offering successive types of discounts on the same product. For example, month one: product priced at £500 but within a “Buy 2 get 10% off promotion”; month two “Was £500, now £350”.
2) The higher price is not the last price that the product was sold at, for example there have been intervening prices, but the higher price is used as the reference price.
3) There are a series of price claims but each subsequent claim does not offer a greater discount. For example, “Was £150, now £75”, followed by “Was £150, now £99”.