Well, I saved 100 Quid , but the main reasons why I used an agent is because I could get a flight from Chiang Rai to London and the whole flights guaranteed , if booked through an airline then I would have to buy two individual tickets and if the flight to BKK is delayed and I miss the flight to London, then I would lose the flight .
Also, I didn't really trust Turkmenistan's website , the flight fare was quoted as being 961,00 $ . although I expect they mean 961 000 Manat (18 000 Baht).