just had the same problem. Off to prague in November and booked 8 flights with Thomson fly.com. Booked one of my mates on and found out that the first name in his passport is not the same as he has used since i have known him (he uses his middle name), approx 5 years. They want £25 per flight at the difference between the flight prices from when i booked them to now. Total of £70. Its absolutely ridiculous. I have spoken to them twice and they will not even consider a change. Does anyone know why they need to charge such high costs to change a name on their database especially as we haven’t received any tickets????