it does say cash... You can prove it credit cards travellers cheques etc.. Etc... But my comment still aplies, if can't show 500 dollars, pounds or 20k baht etc... You shouldn't be going.
Again I've been travelling for 20 plus years and never been asked... But if I didn't have 500 quid... I wouldn't be going.
They almost never ask... But... Big but... If 20k baht is problem for you to show? You honestly shouldn't be travelling to Thailand if you can show less than 500 quid???
yes... That's right. And if you move province the first one in that province should be in person I believe....and here in Chonburi they make you do the tm30 again even if your at the same address?