Shoppers taking part in internet giant Amazon's Prime Day are being told that the deals on offer may not be the cheapest available. From a report: Amazon said it has never claimed that Prime Day is necessarily the cheapest time to shop on its site. It comes after consumer group Which? warned customers that apparent bargains are not always as good as they seem. It said some goods can actually be cheaper at other times of the year, and advised shoppers to do their research. The 36 hour sale -- aimed at subscribers to the Prime shopping service -- offers discounts on a range of goods. The deals are time-limited, with shoppers being told that some items are only available while stocks last. 查看全文>>