@Stuart ********
its just the timing i was worried about. I don't want to be here too long. The price if about the same to get a fast track as using an agency once in Thailand.
For getting one here (UK) would i just apply as normal and send my old one off? They normally snip the corner on the old passport, would this affect anything? or just take both with me and had both in at immigration on arrival? Sorry for the question overload.