Try contacting them in a private message in Thai, use google translate and also comment on the post that you have messaged them, works for me and I get lots of replies .... good luck,
If you are having to skimp on bringing supplies in I doubt you could afford my services, Shame really because I already had 3 successful tourist/hospitality related business in South East Asia 🙂
I would try and talk him out of joining the British army if you can because very soon they will be looking for 'Cannon fodder' to send to fight in Russia.