Final Ticket Payment & Hidden Charges

Since we are now insured for cancellation I decided I'd pay off the remainder on the tickets. Of course the final price has risen by €50 each due to an "increase in global oil prices". These are the hidden charges they don't tell you about. In total we paid an extra €€204 each above the advertised amount of the ticket. Hmmm not impressed considering airlines are supposed to hedge the price of oil on an annual basis but what can you do and besides on the grand scale of things the ticket price isn't a big portion of the overall cost.