Most air passengers have a vague awareness that they can reclaim tax charges from cancelled flights; few bother to do so. Expensive, time-consuming phone calls, unhelpful websites, maddening loopholes, and a meagre refund at the end of it all is what most expect and avoid. But now there is a company to do the legwork for you. Miss Refund is a Dutch start-up based in Haarlem, which, for €25 will reclaim tax and surcharge costs for passengers who have cancelled a flight. Book an economy Lufthansa return flight from Berlin to New York and the total fare will come to €452.71, but only €141 of this is non-refundable; the other €311.71 is taxes and service charges that can potentially be refunded. Iwan van Geelen, the company's creator, says Miss Refund has claimed back as much as €630 for one customer. It's a little-known fact that airlines are taxed not on how many tickets they sell, but on how many bodies actually fly. If, however, you ask for a refund, most airlines will hit you with an 'administration fee' of up to €31, often leaving you with a trivial reimbursement after a long and frustrating process. Miss Refund, which, a month since launching, is receiving 50 claims a week, acts as an insurance against such time-wasting, and if your claim is unsuccessful they refund your €25 fee. Van Geelen has already had success with Check Me In, a service that allows customers to check into a flight in advance of check-in desks opening. The frustrating side of flying is finally avoidable - at a price.