Yeo Li Ping I read terms and conditions for some of the banks. At this point they have no right to close your account unless 1. you commited a crime (mule account for money
laundering), 2. you opened it on a tourist, or. DTV visa.
Whether you still reside in Thailand on a long term visa, or not, should not affect you if you opened the account correctly
But, they also reserve the right to change these terms and conditions at government request, so if the governmemt decides that only long term visa holders can continue to hold accounts, then its game over
You can write there whatever you want. I wrote when I applied for an extension in Bangkok that I am thinking about applying for another language course. They did not care
we already pay indirect taxes in Thailand (at moment of purchase) and it’s no rule that people living in a particular country have to pay income tax, for wage, interest, profit, rent, that was earned in another country (how I did living in Europe and Cambodia while earning income from North America) so please spare us these platitudes