when you apply for a non O in the uk you can use funds equivalent to 800k baht or 65k baht monthly in your own UK bank account in UK pounds, you do not need these funds in a thai bank account. Once you are in thailand and you want to stay long term then you will need to open a thai bank account and deposit 800k baht as part of the requirement of getting an extension
Does your visa require it? If you are on DTV or other tourist visas then it's not required as part of the visa. If you have applied for a non O retirement visa then you will need a thai bank account as part of the extension
If you flew in on visa exempt then you will have been stamped in for 60 days not 30 so no need to do anything, just check your visa stamp.in your passport it should confirm 60days
I'm not sure i would get terribly excited about this, it's the same question they asked when the landing card was issued many years ago. I know when I fly out of Manchester I will use UK as my departure country even though I pass through Doha on my way to Bangkok. If you look at the TDAC for UK people there is also a separate Scotland option!!! So you can choose!!! Also they have choice of cities where you live back in the UK, the options here are all mixed up!! You have a choice of cities and counties!!! So the system isn't perfect so make a choice and enjoy thailand