@renilto: The lack of a Cashback Reward may be due to a variety of reasons, including, but not limited to the rules set by the merchant at cashback.opera.com. Please note that it is the participating shops in the Opera Cashback programme that deal directly with the awarding of cashback. The Booking shop always indicates in the summary of your order whether the transaction will be awarded with cashback, if this information does not appear, it means that for some reason the shop has not attributed the transaction to the Opera Cashback marketing source. We always try to do our best to help our users receive cashback. Please feel free to contact us via support@cashback.opera.com, we will always try to assist you as comprehensively as possible with any Opera Cashback issue.