“There is a variable availability of most stocks but I observe that one day I can buy organic olive oil at £9.50 but this week I notice the same product is on roll back at £4. I did buy one bottle at £9.50 but never again. I feel that they are playing with shoppers to up their margins. Anyway I bought lots of this oil at Tesco for £3 per bottle....I will continue to shop around and not trust the first price I see in Asda. Distrusting the roll back prices.”