First you may find a good price on Opodo, Kayak or any other comparison site . You would choose your flight and would be transferred to their website. When you trying to purchase you would not be able to proceed til the final purchase. Their website will ask you to call their agent . Their agent will tell you the original price is not available anymore but a revised more expensive price is. When you question them why ? They would say price went up in the past few minutes. When you tell them the price is the same as it was in the past 2 days they would come up with other rubbish excuses. Please do not fall for them but keep searching.