I booked flights for myself and 4 family members in January this year. I went through Skyscanner and had hoped to book with Travelup, who I have used previously and found excellent and very reliable. The flights were from London to Livingstone (Zambia) via Johannesburg {outward} and from Lilongwe, Malawi to London, via Johannesburg {return} Travelup had no availability left, so used Opodo. One ticket was for a child, aged 14; when I printed off the paperwork for the booking after paying, I found that (1) Opodo had charged a booking fee of £103.66 extra (there was no mention of any booking fees while I was going through the online booking process), (2) in the payment section was the note: Please note: if your booking includes passengers between 12 and 15 years old at the time of travel you may be eligible for a partial tax refund. When I began the online booking I entered the information that there were 4 adults and 1 child passenger. Opodo had charged for 5 adults, thus I paid air passenger duty for 5 passengers even though one was a child. The child air passenger duty was abolished several years ago. I tried several times to contact Opodo to ask for a refund of this extra tax paid. I had no success getting through to anyone at Opodo. Finally I managed on online chat session (with the conversation showing on the screen) and was told I couldn't be given any refund before the flights. We would have to take the trip, use the flights, then apply for the refund afterwards (later in August). I had so much trouble contacting Opodo and getting any help or response that I do not now feel it is worthwhile pursuing a claim of refund for air passenger duty for the 14 year old member of our family. Also, information on the website indicated I would have to pay a charge to Opodo for handling the request for a refund. I will never use this company again. I feel they are dishonest in the way they conduct business. Once they have got the payment they make it almost impossible to contact them again and you only find out about the added 'service charge' after you have sent payment. They have sent lots of e-mails offering discounts from future bookings with them, but I would never use them again. (It would have cost me less if I had booked directly with the airline!!)